cause and effect of drought essay

Essay on Drought for Students and Children

500+ words essay on drought.

Drought is a dangerous condition which decreases the quality of life. It is termed as a natural disaster with harmful effects. A drought usually occurs when a region faces a shortage of water. This is mainly due to lesser rainfalls. In addition, droughts have proven to be fatal for mankind and wildlife as well.

Moreover, drought is the most dangerous for a farmer. As they do not have an ample supply of water, their crops dry out. This becomes a reason for worry as it is their sole income. Furthermore, drought also leads to various other problems for the environment and mankind.

Causes of Drought

Drought is caused due to various reasons. One of the main reasons is deforestation . When there will be no trees, the water on land will evaporate at a faster rate. Similarly, it lessens the soil capacity to hold water resulting in evaporation. Moreover, lesser trees also mean lesser rainfall which eventually leads to drought.

Furthermore, as the climate is changing, the water bodies are drying up. This results in a lower flow of surface water. Therefore, when the rivers and lakes will dry out, how will the people get water? In addition, global warming is a major cause of this. The greenhouse gas emitted causes the earth’s temperature to rise. Thus, it results in higher evaporation rates.

Subsequently, excessive irrigation is also a great cause of droughts. When we use water irresponsibly, the surface water dries up. As it does not get ample time to replenish, it causes drought.

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Impact of Drought

Drought is a serious disaster which impacts the whole of mankind, wildlife, and vegetation greatly. Moreover, a region which experiences drought requires a lot of time to recover from the disaster. It is a severe condition which interferes with the quality and functioning of life.

Most importantly, the agriculture sector suffers the most at the hands of drought. For instance, farmers face a loss of crop production, livestock production. Moreover, they experience plant disease and wind erosion. Similarly, they also have to face heavy financial losses. Their financial condition worsens and they end up in debt. This also leads to higher rates of depression and suicides.

Furthermore, wildlife also suffers. They do not get sources of water to drink from. In addition, when forest fires happen due to droughts, they also lose their habitats and life. Just like any natural disaster , droughts also result in inflation of prices. The basic products become expensive. The poor people do not get access to essential foods due to high rates. Subsequently, droughts also degrade the quality of the soil. This result in poor or no yielding of crops.

In short, drought is definitely one of the most catastrophic natural disasters. It causes loss of life, vegetation and gives rise to other deadly problems like famine. The citizens and government must join hands to prevent droughts to save thousands of lives. This joint effort can help save the world from such a catastrophe.

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What is drought? Causes, impact & countries most affected

East Africa is facing its worst drought in 40 years, with over 1.4 million people displaced by drought in Somalia alone. Learn more about drought, what causes it, and how we can support those most impacted.

Around the world, droughts are becoming increasingly common due to rising global temperatures — and have serious impacts, leading to crop failures, famine and malnutrition. 

East Africa , for example, is facing its worst drought in years, affecting 40 million people. Many are facing near-famine and malnutrition because of the drought’s impact on food supplies. 

Learn more about drought, what causes it, and what the IRC is doing to help in East Africa. 

Support our work

What is drought .

Drought is caused by a lack of rainfall, causing serious water shortages. It can be fatal.  

More specifically, drought is defined by a period of unusually dry weather caused by low rainfall and high temperatures. It is also defined in terms of the impact on agriculture when crops fail due to lack of moisture in soil, leading to food shortages and serious human impacts such as famine in severe cases. 

Unlike other extreme weather events that are more sudden, like earthquakes or hurricanes, droughts happen gradually. But they can be just as deadly as other weather hazards—if not more so. Drought has affected more people in the last 40 years than any other natural disaster.  

The severity of drought worsens over time. When it arrives, drought can last for weeks, months, or years—sometimes, the effects last decades. 

What causes drought?  

Droughts can be triggered by natural causes such as weather patterns. But increasingly they are caused by human activity. 

Human causes of drought 

Climate change : Global warming makes extreme weather more likely. It can make places drier by increasing evaporation. When land becomes so dry, an impermeable crust forms, so when it does rain, water runs off the surface, meaning sometimes flash flooding occurs. 

Deforestation : Plants and trees capture and release water into the atmosphere, which creates clouds and then rain. Scientists have observed a relationship between deforestation and drought. 

Agriculture : Intensive farming contributes to deforestation in the first instance but can also affect the absorbency of the soil, meaning it dries out much more quickly. 

High water demand : There are several reasons water demand might outweigh the supply, including intensive agriculture and population spikes. Also, high demand upstream in rivers (for dams or irrigation) can cause drought in lower, downstream areas. 

Other natural causes of drought 

Changes in ocean temperatures : El Niño and La Niña are climate patterns that can cause drought in some parts of the world. El Niño is characterized by warmer-than-average ocean temperatures in the Pacific Ocean, which can lead to drought in the southwestern United States and southern Africa. La Niña is characterized by cooler-than-average ocean temperatures in the Pacific Ocean, which can lead to drought in Australia and Indonesia. 

The jet stream : The jet stream is a band of strong winds that flows high in the atmosphere. Changes in the jet stream can cause drought in some areas by bringing in dry air from other parts of the world. 

How are people impacted by drought? 

Risk of famine .

Drought causes food insecurity when crops fail. When a substantial part of the population can no longer access food this is known as famine and results in widespread acute malnutrition, disease and death across the affected region. 

East Africa is currently experiencing widespread food shortages and near-famine, with millions of children under 5 suffering from severe acute malnutrition. 

Malnutrition 

A lack of nutritious food caused by food shortages leads to acute malnutrition. Children suffering from malnutrition are a high risk category. Deprived of essential vitamins and minerals required for their proper growth, they are prone to disease, severe developmental delays and even death.   

Effective treatment for children suffering from malnutrition exists, but often does not reach those most in need. The IRC has developed a simplified process for treating malnutrition in order to reach more children with lower costs. 

Increase in diseases 

Drought affects vital access to clean drinking water. This can lead to people drinking contaminated water, which brings about outbreaks of diseases like cholera and typhoid. These diseases can also spread in places with poor sanitation, another side-effect of having no clean water. 

It can cause wildfires 

Dry conditions can cause wildfires that burn remaining vegetation and endanger homes. Fires can also impact air quality and exacerbate chronic lung conditions. 

People are displaced 

People must travel further to find clean water. This usually falls to women and children, who must sacrifice other work and school to carry out an incredibly physical task. 

Without access to clean water or food, many must permanently leave their homes in order to survive. The World Health Organization states , “Water scarcity impacts 40% of the world’s population, and as many as 700 million people are at risk of being displaced as a result of drought by 2030.” 

Related : Meet the people displaced by drought in Somalia  

It can feed into conflict 

Research has also found that drought exacerbates existing conflicts. People migrating en masse from areas of drought and famine can result in increased political tensions and conflict due to increased competition for resources. There is evidence that drought contributed to the conflict in Syria , for example. 

Flash flooding 

Flooding can also be a risk in the same geographical areas that suffer from drought. 

Rain after a drought sounds like it ought to be a good thing, but after a prolonged period of dryness, sudden heavy rainfall can lead to hazardous flash flooding like that seen in Pakistan.  

This is because droughts leave the ground hard and baked, with little to no plant cover and low soil quality, which prevents rain from saturating the ground. Instead, when waterfalls in a large quantity and at speed—like in a thunderstorm—it runs over the parched ground. 

Which countries are in a drought? 

Droughts can occur all around the world. However, the effects of drought vary by region.  

Droughts bring the most risk to areas with high-pressure weather systems that are already prone to desertification. Developing countries are also more vulnerable to the socio-economic effects of drought due to a large percentage of their population being employed in the agriculture industry.  

East Africa 

In Africa droughts pose a high risk and the following countries in East Africa are severely affected by drought: 

Somalia where drought is leading to near-famine conditions 

Kenya which has experienced a record six below average rainy seasons 

Ethiopia has seen six below average rainy seasons in a drought affecting 31 million people 

Over 40 million people have been impacted by the drought across East Africa. The drought affecting countries like Somalia, Kenya and Ethiopia began in October 2020. Throughout these regions, insecurity, severe drought, and an exponential increase in food prices have brought millions to the brink of famine. 

“Somalia is seeing the worst of the crisis, with over 200,000 already living in the most extremes of hunger, but the challenge is regional,” says Abukar Mohamud, IRC’s Deputy Director of Programs for Somalia. “Across East Africa, people are facing the worst drought in 40 years.  

“People are not just dying due to a lack of food. Hunger means their weakened bodies cannot fight off diseases like diarrhea, measles or malaria, so death rates are high. Children are particularly at risk and often die at double the rate of adults. And those who survive will face ill health for the rest of their lives. The 2011 famine saw over 250,000 people die of hunger – half of whom were children.” 

What is the IRC doing to help in East Africa? 

East Africa is home to some of the IRC’s longest-running programs globally. Today, over 2,000 IRC staff in the region are scaling up our programs to address the current drought and rising food insecurity, including expanding to new areas to meet severe needs. 

This includes health programming, food and cash assistance, and providing clean water.  

A new approach to treating malnutrition 

Currently, 80% of malnourished children do not have access to treatment. The IRC has developed a streamlined approach for treatment so that more children can access treatment and recover. We are working to raise funds and remove blocks so that this treatment can be distributed at scale in places like East Africa.  

How can I help?

Around the world, our staff are working around the clock to ensure families can survive, recover and regain control of their futures. Donate now to support our work.

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Understanding Droughts

Drought is an extended period of unusually dry weather when there is not enough rain.

Biology, Ecology, Earth Science, Meteorology, Geography, Human Geography, Physical Geography, Social Studies, U.S. History, World History, Geology

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Drought  is an extended period of unusually dry  weather  when there is not enough rain. The lack of  precipitation  can cause a variety of problems for local communities, including damage to  crops and a shortage of drinking water. These effects can lead to devastating  economic  and social disasters, such as  famine ,  forced migration  away from drought -stricken areas, and  conflict  over remaining  resources .

Because the full effects of a drought can develop slowly over time, impacts can be underestimated. However, drought can have  drastic  and long-term effects on  vegetation , animals, and people. Since 1900, more than 11 million people have died and more than 2 billion people have been affected by drought . Drought is also one of the costliest weather -related disasters. Since 2014 California has lost at least 2 billion-dollars a year, due to drought .

Defining Drought

Drought is a complicated  phenomenon , and can be hard to define. One difficulty is that drought means different things in different regions. A drought is defined depending on the average amount of precipitation that an area is accustomed to receiving.

For example, in Atlanta, Georgia, the average rainfall is about 127 centimeters (50 inches) a year. If  significantly less rain falls, there may be water shortages and a drought may be declared. However, some arid regions, such as the  deserts of the American Southwest, may receive less than about 25 centimeters (10 inches) of rainfall in a non- drought year. A drought in Atlanta could be a very wet period in Phoenix, Arizona!

Determining the start of a drought can be tricky. Unlike many  natural hazards that bring about sudden and dramatic results—such as  earthquakes ,  tornadoes , and  hurricanes —the onset of a drought can be gradual and subtle. It can take weeks, months, or even years for the full effects of long-term  inadequate  rainfall to become apparent.

The end of a drought can also be difficult to determine. While a single rain storm will provide short-term relief from a drought , it might take weeks or months before levels of precipitation return to normal. The start and end of a drought are often only clear in hindsight .

Causes of Drought

Most droughts occur when regular weather patterns are interrupted, causing  disruption to the  water cycle . Changes in  atmospheric circulation  patterns can cause storm tracks to be  stalled for months or years. This disruption can dramatically impact amounts of precipitation that a region normally receives. Changes in wind patterns can also be disruptive to how moisture is absorbed in various regions.

Scientists have found a link between certain  climate  patterns and drought . El Niño is a weather event where the surface water in the Pacific Ocean along the central South American coast rises in temperature. These warmer waters alter storm patterns and are associated with droughts in Indonesia, Australia, and northeastern South America. El Nino events keep climate scientists guessing, by occurring every two to seven years.

La Niña is the counterpart to El Niño , when the surface water in the Pacific Ocean along the coast of South America decreases in temperature. The cooler waters affect storm patterns by contributing to drier-than-normal conditions in parts of North and South America. El Niño and La Niña both usually last about a year. The effects of La Niña on weather patterns are often more  complex  than El Niño . Two of the most devastating droughts in the history of the United States—the 1930s  Dust Bowl  and the 1988 drought in the Midwest—are associated with the effects of La Niña.

There is still a lot of debate about the connection between drought and  global warming , the current period of  climate change . A 2013 NASA study predicts warmer worldwide temperatures will mean increased rainfall in some parts of the world and decreased rainfall in others, leading to both more flooding and more droughts worldwide. Other scientists question the prediction that there will be more droughts and believe global warming will create a wetter climate around the world.

Impacts of Drought

Trees and other plants have adapted to withstand the effects of drought through various survival methods. Some plants (such as grasses) will slow their growth or turn brown to conserve water. Trees can drop their leaves earlier in the season to prevent losing water through the leaf surface. However, if drought conditions persist, much vegetation will die.

Certain plants have adapted so they can withstand long periods without water. Yuccas, for instance, have deep  root systems that can seek out water with incredible efficiency. Cacti have spiny, hairy spines, spikes, or leaves that limit how much water they lose to  evaporation . Mosses can withstand complete  dehydration . Juniper trees can self- prune  by steering water only to ward the branches required for survival. Other plants only grow when there is enough water to support them. In periods of drought , their seeds can survive under the  soil for years until conditions are favorable again.

However, many organisms cannot adapt to drought conditions, and the environmental effects of extended, unusual periods of low precipitation can be  severe . Negative impacts include damage to  habitats , loss of  biodiversity , soil   erosion , and an increased risk from  wildfires . During the U.S. drought of 1988, rainfall in many states was 50 to 85 percent below normal. Summer thunderstorms produced  lightning  without rain and  ignited fires in dry trees. In Yellowstone National Park 36 percent of the park was destroyed by fire.

Drought can also create significant economic and social problems. The lack of rain can result in crop loss, a decrease in land prices, and  unemployment  due to declines in production. As water levels in rivers and lakes fall, water-supply problems can develop. These can bring about other social problems. Many of these problems are health-related, such as lack of water, poor  nutrition , and famine . Other problems include conflicts over water usage and food, and forced migration away from drought -stricken areas.

While drought is a naturally occurring part of the weather cycle and cannot be prevented, human activity can influence the effects that drought has on a region. Many modern agricultural practices may make land more  vulnerable to drought . While new  irrigation  techniques have increased the amount of land that can be used for farming, they have also increased  farmers ’ dependence on water.

Traditional agricultural techniques allow land to “rest” by rotating crops each season and alternating areas where  livestock graze . Now, with many areas in the world struggling with overpopulation and a shortage of farmland, there is often not enough  arable  land to support  sustainable practices. Over-farming and  overgrazing  can lead to soil being  compacted and unable to hold water. As the soil becomes drier, it is vulnerable to erosion . This process can lead to  fertile  land becoming desert -like, a process known as  desertification . The desertification of the  Sahel  in North Africa is partly blamed on a prolonged drought whose effects were intensified by farming practices that result in overgrazing .

Increased drought conditions in Kenya have been attributed to  deforestation and other human activities. Trees help bring precipitation into the ground and prevent soil erosion . But in 2009, it was reported that one-quarter of a protected forest reserve had been cleared for farming and  logging , leading to drought conditions affecting 10 million people around the country.

Historical Droughts

Scientists often study historical droughts to put modern-day droughts in perspective. Since our  data  from  thermometers and  rain gauges only goes back about 100 to 150 years, scientists must research  paleoclimatology , the study of the atmosphere of prehistoric Earth. Scientists gather paleoclimatic data from  tree rings ,  sediments found in lakes and oceans,  ice cores , and archaeological  features and  artifacts . This allows scientists to extend their understanding of weather patterns for millions of years in the past.

Analyzing paleoclimatic data shows that severe and extended droughts are an  inevitable  part of natural climate cycles. North America has experienced a number of long-lasting droughts with significant effects. It is thought that droughts brought about the decline of the  Ancestral Puebloans  in the Southwest during the 13th century, and the central and Lower  Mississippian societies in the 14th to 16th centuries.

In South America, massive migration out of the once-fertile Atacama Desert 9,500 years ago can be explained by the onset of extreme drought.

In Africa, the Sahel region experienced a dry period from 1400 to 1750 that radically altered the  landscape . The water level in Lake Bosumtwi, Ghana, for instance, fell so low that an entire forest grew on the lake’s edges. Today, visitors can still see the tops of trees growing out of the lake—where the water is now more than 15 meters (50 feet) deep.

What scientists have learned by looking at Earth’s drought history is that periods of severe drought are a regular part of nature’s cycle. As devastating as droughts in the last century have been, they are considered relatively minor compared to the severity of earlier droughts that have lasted more than a century.

Major Droughts in the Past Century

The Dust Bowl of the 1930s is probably the most well-known drought experienced by the U.S. By 1934, 80 percent of the U.S. was struggling with moderate-to- severe drought conditions. The drought lasted nearly a decade and had devastating effects on crop production in the  Great Plains . The combination of lack of rain, high temperatures, and strong winds affected at least 50 million acres of land. Massive clouds of dust and sand formed as unusually strong winds lifted the dry soil into the air. These clouds could block out the sun for days, giving the period the name “ dust bowl .” In 1934, one dust cloud infamously traveled 2,414 kilometers (1,500 miles), from the Great Plains to the eastern U.S.

Mass migration was an indirect effect of the Dust Bowl . Farmers and their families were forced to migrate to other areas in search of work, and by 1940, 2.5 million people had fled the Great Plains . Of those, 200,000 moved to California. The influx of migrants into existing economies already strained by the Great Depression led to a rise in conflict , unemployment , and  poverty .

In the 1950s, severe drought returned to the Great Plains and southwestern United States, affecting half of the continental U.S. Low rainfall and high temperatures caused the production of crops in some areas to drop nearly 50 percent. Hay became too expensive for ranchers, and they had to feed their cattle prickly pear cactus and molasses to keep them alive. By the end of the five-year drought in 1957, 244 of Texas’ 254 counties had been declared  federal   drought disaster areas .

In the late 1980s, the U.S. experienced one of the costliest drought in its history. The three-year spell of high temperatures and low rainfall ruined roughly $15 billion of crops in the  Corn Belt . The total of all the losses in energy, water,  ecosystems , and  agriculture  is estimated at $39 billion. Federal assistance programs were able to help many farmers , but a longer-lasting drought would make it more difficult for the government to provide nationwide aid.

Droughts continue to affect the U.S. Texas has been suffering from drought since 2010, with 2011 ranking as the driest year in the state’s history. A September 2012  National Geographic  magazine article called Texas “The New Dust Bowl.” By 2013, 99 percent of the state was dealing with drought.

Australia is also a frequent victim of drought . The last decade has been especially severe , earning it the name The Big Dry or The Millennium Drought . Much of the country was placed under water restrictions, wildfires spread in the dry weather , and the water level in some  dams fell to 25 percent. In 2007, 65 percent of viable land in Australia was declared to be in a drought . The drought was officially declared over in April 2012.

Droughts that occur in the  developing world  can cause even greater devastation. The Sahel region in Africa, which includes eight countries, endured a series of droughts in the 1970s and 1980s where annual rainfall dropped by about 40 percent. In the early 1970s, more than 100,000 people died and millions of people were forced to migrate. Conditions continue to be critical in the area due to drought , overpopulation, failing crops , and high food prices. Drought emergencies for the region have been declared four times since 2000.

The  Horn of Africa , which includes the countries of Ethiopia, Somalia, Eritrea, and Djibouti, is particularly vulnerable to droughts . Because almost 80 percent of the population is rural and depends on agriculture for food and income, famine often accompanies drought .

Struggles for the region’s limited, remaining resources can lead to conflict and war. In 1984 and 1985, the Horn of Africa suffered one of the worst droughts of the 20th century. The U.N. estimates that in Ethiopia alone, 1 million people died, 1.5 million livestock died, and 8.7 million people were affected by the drought—including being hospitalized, forced to migrate, or forced to change professions. In Sudan, 1 million people died, at least 7 million livestock died, and 7.8 million people were affected.

The cycle of drought-famine-conflict has persisted in the region, with drought conditions returning every few years since 2000. In 2006, drought affected 11 million people across the Horn of Africa, and the resulting crisis killed between 50,000 and 100,000 people and affected more than 13 million.

Forecasting and Measuring Drought

Even though scientists are unable to predict how long a drought will last or how severe it will be, early warning systems and  monitoring tools can  minimize  some of drought ’s damaging impacts. There are a number of tools used to monitor drought across the U.S. Due to the limitations of each system, data from different sources are often compiled to create a more comprehensive  forecast .

The Palmer Drought Severity Index (PDSI), developed in 1965 by the  National Weather Service , is the most commonly used drought monitor . It is a complex measurement system and an effective way to forecast long-term drought . Its limitations are that it does not provide early warnings for drought and is not as accurate for use in mountainous areas because it does not account for snow (only rain) as precipitation . The PDSI is often used by the U.S. Department of Agriculture to determine when to begin providing drought relief.

Information from the Standardized Precipitation Index (SPI) is often used to supplement the PDSI data . The SPI, developed in 1993, is less complex than the PDSI and only measures precipitation —not evaporation or water  runoff . Many scientists prefer using the SPI because the time period being analyzed can easily be  customized . The SPI can also identify droughts many months earlier than the PDSI. The National Drought Mitigation Center uses the SPI to monitor drought conditions around the U.S.

The U.S. Drought Monitor , started in 1999, is a joint effort between three U.S. government agencies—the Department of Agriculture , the Department of Commerce, and the National Oceanic and Atmospheric Administration (NOAA). The Monitor   synthesizes data from  academic  and federal scientists into a weekly map indicating levels of dryness around the country. It is designed to be a blend of science and art that can be used as a general summary of drought conditions around the country. It is not meant to be used as a drought predictor or for detailed information about specific areas.

The Famine Early Warning System Network (FEWS NET) monitors satellite data of crops and rainfall across Africa and some parts of Central America, the Middle East , and Central Asia. Analysis of the data allows for early intervention to try to prevent drought -induced famine .

Preparing for Drought

People and governments need to adopt new practices and policies to prepare as much as possible for inevitable future droughts . Emergency spending once a crisis has begun is less effective than money spent in preparation. The  Federal Emergency Management Agency (FEMA)  estimates that every $1 spent in planning for a natural hazard will save $4 in the long term.

Many areas are extremely vulnerable to drought as people continue to be dependent on a steady supply of water. The U.S. Department of Agriculture recommends a series of  conservation  practices to help farmers prepare for drought . Some preventative measures include in stalling an  efficient   irrigation system that reduces the amount of water lost to evaporation , storing water in ditches along fields, regularly monitoring soil moisture, planting crops that are more drought -resistant, and rotating crops to allow water in the soil to increase.

In  urban areas , many cities are promoting water conservation by addressing water usage habits. Some enforce water restrictions, such as limiting days when lawns and plants can be watered, and offering free high-efficiency toilets and kitchen faucets.

Some drought-ravaged cities are taking even more extreme measures to prepare for future droughts. In Australia, the city of Perth is planning for a massive wastewater -recycling program that will eventually provide up to a quarter of the city’s water demands by 2060. Perth has been dealing with a decline in rainfall since the mid 1970s. The city, which is on the edge of a huge desert, is also struggling with its history of over-consumption of water. Water-hungry traditions such as planting large, lush lawns and parks will need to be addressed through conservation measures.

Drought in the USA In August 2012, drought conditions extended over 70 percent of the United States. Counties in 33 states were designated “disaster counties” by the government. In the beginning of 2013, drought still affected more than 60 percent of the country.

Dust Bowl John Steinbeck’s 1939 novel The Grapes of Wrath describes the Dust Bowl drought of the 1930s: “Every moving thing lifted the dust into the air: a walking man lifted a thin layer as high as his waist, and a wagon lifted the dust as high as the fence tops, and an automobile boiled a cloud behind it. The dust was long in setting back again.”

Yunnan Drought

The ongoing drought in Yunnan Province, China, has forced some families to transport water from more than 10 kilometers (6 miles) away.

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Drought: Everything You Need to Know

Drought affects more people globally than any other natural disaster. Here’s what causes these prolonged dry spells and how we can mitigate their impact.

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Natural disasters usually announce their arrival: Hurricanes uproot trees, tornadoes roar, and wildfires wipe out entire landscapes. These large, sudden events generate destruction on impact—and then they’re gone.

Drought is different. It doesn’t make a big entrance—the start of a drought might even be mistaken for a bit of a dry spell—and its impact builds over time. But while often described as a “ creeping disaster ,” drought leaves a trail of destruction as dangerous and deadly as any other extreme weather event. In fact, drought has affected more people around the world in the past four decades than any other type of natural disaster.

Here’s a look at what drought is, what causes it, and how we can better prepare for its impact.

What is drought?

Types of drought, causes of drought, are droughts increasing, drought prevention and preparation.

Drought is characterized by a lack of precipitation —such as rain, snow, or sleet—for a protracted period of time, resulting in a water shortage. While droughts occur naturally, human activity, such as water use and management, can exacerbate dry conditions. What is considered a drought varies from region to region and is based largely on an area’s specific weather patterns. Whereas the threshold for drought may be achieved after just six rainless days on the tropical island of Bali, annual rainfall would need to fall below seven inches in the Libyan desert to warrant a similar declaration.

Developing nations are particularly vulnerable to the impacts of climate change, including drought. More than 80 percent of drought-induced economic damage and loss suffered by developing nations from 2005 to 2015 was related to livestock, crops, and fisheries. The economic toll of some $29 billion tells only part of the story. Drought in developing nations is notorious for creating water and food insecurity and exacerbating preexisting problems such as famine and civil unrest. It can also contribute to mass migration, resulting in the displacement of entire populations.

A refugee camp in Kenya

IHH Humanitarian Relief Foundation/Flickr

In the United States, drought is the second-most costly form of natural disaster (behind hurricanes), exacting an average toll of $9.6 billion in damage and loss per event, according to the National Oceanic and Atmospheric Administration's (NOAA) National Centers for Environmental Information. Meanwhile, some level of drought often has some part of the country in its grip. During the historic dry spell of 2012 (the nation’s most extensive since the 1930s ), as much as two-thirds of the country was affected by drought at its peak. U.S. droughts can be persistent as well. From 2012 to 2016, scant rainfall and record-breaking heat in California created what is estimated to have been the state’s worst drought in 1,200 years .

These dry spells take a major toll on the economy, with the drought and extreme heat of 2012 alone resulting in an estimated $17 billion in crop loss es. As in developing nations, they can create conditions of water insecurity and higher food prices. Drought can also lead to regionally specific problems. In California, for example, a large number of native fish populations that depend on the San Francisco Bay–Delta Estuary —from the bellwether delta smelt to the iconic Chinook salmon—have suffered sharp declines due to reduced river flows during the recent historic drought.

Droughts are categorized according to how they develop and what types of impact they have.

Drought damage on the Fresno Harlen Ranch in Fresno, California

Cynthia Mendoza/USDA

Meteorological drought

Imagine a large swath of parched, cracked earth and you’re likely picturing the impact of meteorological drought, which occurs when a region’s rainfall falls far short of expectations.

Agricultural drought

When available water supplies are unable to meet the needs of crops or livestock at a particular time, agricultural drought may ensue. It may stem from meteorological drought, reduced access to water supplies, or simply poor timing—for example, when snowmelt occurs before runoff is most needed to hydrate crops.

Hydrological drought

A hydrological drought occurs when a lack of rainfall persists long enough to deplete surface water—rivers, reservoirs, or streams—and groundwater supplies.

Natural Causes

Droughts have plagued humankind throughout much of our history, and until recently they were often natural phenomena triggered by cyclical weather patterns, such as the amount of moisture and heat in the air, land, and sea.

Fluctuating ocean and land temperatures

Ocean temperatures largely dictate global weather patterns, including dry and wet conditions on land, and even tiny temperature fluctuations can have huge ripple effects on climate systems. Research shows that dramatic and prolonged temperature changes in the North Pacific and North Atlantic Oceans correspond directly to extreme weather patterns on land, including persistent droughts in North America and the eastern Mediterranean—the latter of which has been described as the region’s worst drought in 900 years . Fluctuating ocean temperatures are also behind El Niño and La Niña weather phenomena, with La Niña notorious for drying out the southern United States . Meanwhile, hotter surface temperatures on land lead to greater evaporation of moisture from the ground, which can increase the impact of drought.

Altered weather patterns

The distribution of rainfall around the world is also impacted by how air circulates through the atmosphere. When there is an anomaly in surface temperatures—particularly over the sea—air circulation patterns are altered, changing how and where precipitation falls around the world. The new weather patterns can throw water supply and demand out of sync, as is the case when earlier-than-usual snowmelt reduces the amount of water available for crops in the summer.

Reduced soil moisture

Soil moisture can impact cloud formation, and hence precipitation. When water from wet soil evaporates, it contributes to the formation of rain clouds, which return the water back to the earth. When land is drier than usual, moisture still evaporates into the atmosphere, but not at a volume adequate to form rain clouds. The land effectively bakes, removing additional moisture and further exacerbating dry conditions.

Manmade Causes

While drought occurs naturally, human activity—from water use to greenhouse gas emissions—is having a growing impact on their likelihood and intensity.

Climate change

Climate change—and global warming , specifically—impacts drought in two basic ways: Rising temperatures generally make wet regions wetter and dry regions drier. For wetter regions, warm air absorbs more water, leading to larger rain events. But in more arid regions, warmer temperatures mean water evaporates more quickly. In addition, climate change alters large-scale atmospheric circulation patterns, which can shift storm tracks off their typical paths. This, in turn, can magnify weather extremes, which is one reason why climate models predict the already parched U.S. Southwest and the Mediterranean will continue to get drier.

Excess water demand

Drought often reflects an imbalance in water supply and demand. Regional population booms and intensive agricultural water use can put a strain on water resources, even tipping the scale enough to make the threat of drought a reality. One study estimates that from 1960 to 2010, the human consumption of water increased the frequency of drought in North America by 25 percent. What’s more, once rainfall dwindles and drought conditions take hold, persistent water demand—in the form of increased pumping from groundwater, rivers, and reservoirs—can deplete valuable water resources that may take years to replenish and permanently impact future water availability. Meanwhile, demand for water supplied by upstream lakes and rivers, particularly in the form of irrigation and hydroelectric dams, can lead to the diminishing or drying out of downstream water sources, which may contribute to drought in other regions.

Drought-stricken Lake Powell, seen from space

Deforestation and soil degradation

When trees and plants release moisture into the atmosphere, clouds form and return the moisture to the ground as rain. When forests and vegetation disappear, less water is available to feed the water cycle, making entire regions more vulnerable to drought. Meanwhile, deforestation and other poor land-use practices, such as intensive farming, can diminish soil quality and reduce the land’s ability to absorb and retain water. As a result, soil dries out faster (which can induce agricultural drought), and less groundwater is replenished (which can contribute to hydrological drought). Indeed, experts believe the 1930s Dust Bowl was caused in large part by poor agricultural practices combined with the cooling of the Pacific and the warming of the Atlantic by as little as a few tenths of a degree.

The Intergovernmental Panel on Climate Change (IPCC) did not see a global trend toward increasing dryness or drought across the world in 2013, when it released its most recent assessment. But global temperatures have unequivocally become hotter, and hotter conditions precipitate extreme weather —including severe drought. Hotter conditions also reduce snowpack, which provides a key source of water supply and natural water storage in many regions. Regionally, the driest parts of the earth are getting drier, while the wettest parts are getting wetter. That’s why some areas of the world, such as southern Europe and West Africa, have endured longer and more intense droughts since the 1950s while other regions, such as central North America, have seen droughts become less frequent or less intense. Looking forward, as temperatures continue to rise, the IPCC and other researchers anticipate an intensification of those regional trends.

Cattle farm near Walkaway, western Australia

Jackocage/Flickr

We can’t control the weather. But by limiting our climate change contributions, reducing water waste, and using water more efficiently, we can prepare for—and maybe even curb—future dry spells.

Climate change mitigation

The impact of climate change, including more severe drought, can be mitigated only when countries, cities, businesses, and individuals shift away from the use of climate-warming fossil fuels to cleaner renewable energy sources . The Paris Agreement, which was adopted by nearly every nation in 2015 and aims to limit the earth’s warming over the next century to 2 degrees Celsius, or 1.5 degrees if possible, lays the framework for global climate action. But the current commitments countries made under the pact so far aren’t considered enough to limit global warming to 2 degrees Celsius. It will succeed only if countries go beyond their commitments, and that includes the United States. However, catering to big polluters instead of the will of a majority of Americans, the Trump administration had committed to withdrawing the country from the agreement, as well as from key domestic policies—from the Clean Power Plan to automotive fuel efficiency standards —that would reduce our nation’s carbon emissions. Fortunately, American states and cities , as well as more than 2,000 U.S. businesses, institutions, and universities, are taking the reins on climate action by reducing emissions and increasing energy efficiency. It’s crucial that they do, as research indicates even meeting the agreement’s most ambitious targets will only reduce—not eliminate—the likelihood of extreme weather events.

There’s plenty of room for individuals—particularly Americans, who produce about four times more carbon pollution than citizens elsewhere, on average—to fight climate change as well. Actions include speaking to local and congressional leaders about regional environmental policies and finding ways to cut carbon pollution from your daily life.

Urban water conservation and efficiency

The U.S. Environmental Protection Agency (EPA) estimates that aging infrastructure—faulty meters, crumbling pipes, leaky water mains—costs the United States an estimated 2.1 trillion gallons in lost drinkable water each year. (That’s about enough to drown Manhattan in 300 feet of water.) Meanwhile, a single leaky faucet—releasing just three drips a minute—wastes more than 100 gallons of water in a year. States, cities, water utilities, businesses, and citizens can curb water waste by investing in climate-smart strategies . These include repairing leaky infrastructure (from utility pipes to the kitchen faucet), boosting water efficiency with the use of water- and energy-efficient technologies and appliances (such as clothes washers ), and adopting landscape design that makes use of drought-tolerant plants and water-efficient irrigation techniques. In California, these strategies alone could reduce water use by as much as 60 percent . For individuals, there are many other ways to conserve water as well.

Water recycling

Recycled water —also called reclaimed water—is highly treated wastewater that can be used for myriad purposes, from landscape irrigation (such as watering public parks and golf courses) to industrial processes (such as providing cooling water for power plants and oil refineries) to replenishing groundwater supplies. Graywater—recycled water derived from sinks, shower drains, and washing machines—can be used on site (for example, in homes and businesses) for non-potable uses such as garden or lawn irrigation. Recycled water can serve as a significant water resource, reducing demand from sources such as rivers, streams, reservoirs, and underground water supplies. According to California’s Department of Water Resources, recycling has the potential to increase water supply in the state by as much as 750 billion gallons a year by 2030.

Stormwater capture

Every year in the United States, about 10 trillion gallons of untreated stormwater washes off paved surfaces and rooftops, through sewer systems, and into waterways. Not only does this create pollution problems (as contaminants from land get flushed into rivers, lakes, and oceans), but it reduces the amount of rainwater that soaks back into the earth to replenish groundwater supplies. The use of green infrastructure —including green roofs, tree plantings, rain gardens, rain barrels, cisterns, and permeable pavement—can increase water supplies substantially. Stormwater capture in urban Southern California and the San Francisco Bay region alone could potentially increase annual water supplies by as much as 205 billion gallons .

Farms affected by drought near Strasburg, Colorado

Lance Cheung/USDA

Agricultural water conservation and efficiency

Agriculture is the largest consumer of the earth’s available freshwater, accounting for 70 percent of withdrawals globally, according to the World Bank. Strategies for better water management in the agricultural sector focus on increased water efficiency and reduced consumption. These include improved irrigation techniques—such as switching from flood to drip irrigation, which alone can cut water use by about 20 percent—as well as more precise irrigation scheduling to adjust the amount of water used at different stages of crop growth. Meanwhile, crop rotation, no-till farming (a method for growing crops with minimal soil disturbance), and the use of cover crops help build soil health, which in turn enables the land to absorb and retain more water. Indeed, the use of cover crops alone on just half the land used to grow corn and soybeans in 10 of America’s highest-producing agricultural states would help the soil retain as much as a trillion gallons of water each year.

This NRDC.org story is available for online republication by news media outlets or nonprofits under these conditions: The writer(s) must be credited with a byline; you must note prominently that the story was originally published by NRDC.org and link to the original; the story cannot be edited (beyond simple things such as grammar); you can’t resell the story in any form or grant republishing rights to other outlets; you can’t republish our material wholesale or automatically—you need to select stories individually; you can’t republish the photos or graphics on our site without specific permission; you should drop us a note to let us know when you’ve used one of our stories.

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Drought Impacts

Drought’s consequences are far-reaching, impacting water quality, public health, the economy, the natural environment, public infrastructure, and more. Understanding drought’s potential impacts enables drought planners and decision makers to better address those impacts and, ultimately, improve their communities' preparedness to cope with drought.

Data and Maps

To monitor and respond to drought, its impacts on a community must be fully understood. Immediate drought impacts can include visibly dry vegetation and lower water levels in lakes and reservoirs. Longer-term impacts, such as land subsidence, seawater intrusion, and damage to ecosystems, can be harder to see, but more costly to manage in the future. 

National Weather Service drought information statements provide up-to-date reports on the current drought situation for a Weather Forecast Office’s county warning and forecast area. These statements summarize recent weather and hydrologic conditions, discuss local drought impacts, and provide a local drought outlook.

This map shows all active drought information statements published within the last 35 days. 

This map shows the cumulative cost of billion-dollar drought events by state from 1980 to the present. Specifically, the map reflects drought-induced costs associated with damaged or failed crop production and increased cattle feeding costs. Key sources include USDA crop insurance and production data that may be supplemented by state agency reporting.

Periods of drought can lead to inadequate  water supply , threatening the health, safety, and welfare of communities. Streamflow, groundwater, reservoir, and snowpack data are key to monitoring and forecasting water supply.

Drought can reduce the water availability and water quality necessary for productive farms, ranches, and grazing lands, resulting in significant negative direct and indirect economic impacts to the agricultural sector. Monitoring  agricultural drought typically focuses on examining levels of precipitation, evaporative demand, soil moisture, and surface/groundwater quantity and quality.

Drought can cause significant human health outcomes that can challenge  public health  departments, emergency managers, and healthcare providers. Drought can lead to decreased water quantity and quality, increased incidence of illness or disease, increased mortality rates, and adverse mental health outcomes as livelihoods are challenged.

During drought conditions, fuels for  wildfire , such as grasses and trees, can dry out and become more flammable. Drought can also increase the probability of ignition and the rate at which fire spreads. Temperature, soil moisture, humidity, wind speed, and fuel availability (vegetation) are all factors that interact to influence the frequency of large wildfires.

Extreme weather events can interact or cascade—where one disaster event triggers or changes the probability of another event. For example, drought conditions can increase the probability of large-scale wildfires, and droughts are often accompanied by extreme heat. By including drought in multi-hazard planning , a community can consolidate its resources and develop coordinated responses before a disaster.

Drought Information Statements

U.s. drought monitor, d0 - abnormally dry.

Abnormally Dry (D0) indicates a region that is going into or coming out of drought, according to the U.S. Drought Monitor.  View typical impacts by state.

D1 – Moderate Drought

Moderate Drought (D1) is the first of four drought categories (D1–D4), according to the U.S. Drought Monitor.  View typical impacts by state.

D2 – Severe Drought

Severe Drought (D2) is the second of four drought categories (D1–D4), according to the U.S. Drought Monitor.  View typical impacts by state.

D3 – Extreme Drought

Extreme Drought (D3) is the third of four drought categories (D1–D4), according to the U.S. Drought Monitor. View typical impacts by state.

D4 – Exceptional Drought

Exceptional Drought (D4) is the most intense drought category, according to the U.S. Drought Monitor.  View typical impacts by state.

Cost of Major Drought Events Since 1980

Weather Forecast Offices issue drought information statements as needed based on local conditions. This map is updated daily.

Billion-dollar disaster data are updated quarterly.

Data and Map Gallery

A selection of tools to help assess the economic, environmental, and social impacts of drought.

U.S. Agricultural Commodities in Drought

The U.S. Department of Agriculture produces weekly maps and charts displaying locations and percentages of drought-affected areas corn, soybeans, hay, cattle, and winter wheat. 

Condition Monitoring Observer Reports on Drought (CMOR-Drought)

Condition Monitoring Observer Reports on Drought (CMOR-Drought) is a tool that allows citizen scientists to submit obse

Drought Impact Reporter (DIR)

Drought Impacts Reporter (DIR): an interactive database of drought impacts in the U.S., by location, data, type, and cost built from stakeholder, government, media and other reports.

Community Collaborative Rain, Hail, and Snow Network (CoCoRaHS) Data

Precipitation data from CoCoRaHS: a non-profit, community-based network of volunteers of all ages and backgrounds working together to measure and map precipitation (rain, hail, and snow) acros

Billion-Dollar Weather and Climate Disasters

The National Centers for Environmental Information's Billion-Dollar Weather and Climate Disasters shows the weather and climate events that have had the greatest economic impact from 1980

National Weather Service Drought Information Statements

National Weather Service drought information statements provide up-to-date reports on the current drought situation for a Weather Forecast Office’s county warning and forecast area.

Drought Impacts by State and U.S. Drought Monitor Category

No two states experience the same set of impacts during a drought. Drought in Alaska looks different than drought in Arizona. The following state-specific drought impacts were compiled by the  National Drought Mitigation Center . While these impacts are not exhaustive, they can help provide a clearer picture of drought across the United States. 

How Drought Impacts the United States

• Short-term dryness slowing planting, growth of crops or pastures.
• Some lingering water deficits
• Pastures or crops not fully recovered
• Some damage to crops, pastures
• Streams, reservoirs, or wells low, some water shortages developing or imminent
• Voluntary water-use restrictions requested
• Crop or pasture loss likely
• Water shortages common
• Water restrictions imposed
• Major crop/pasture losses
• Widespread water shortages or restrictions
• Exceptional and widespread crop/pasture losses
• Shortages of water in reservoirs, streams, and wells creating water emergencies

Looking for State or Local Maps?

The Current Conditions page features national conditions. You can also explore maps of current and future conditions by state , watershed , county , or city .

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Water Shortage: Causes and Effects

Climate change, coupled with water mismanagement and overconsumption, is causing droughts and water shortages across many parts of the globe. Aside from the obvious threat to public health, the subsequent effects of water shortage can vary from food insecurity to increased human conflicts, highlighting the importance of protecting global water resources and using them sustainably. Here are the main causes and effects of water shortage and what we can do about it.

It is increasingly evident that droughts around the world are becoming more frequent and intense, as well as are occurring at progressively prolonged periods of time. This is most demonstrable by the ongoing megadrought in the western regions of the US, where it is in the midst of its driest conditions in history . 

No continent on Earth has been untouched by water scarcity, and an increasing number of regions are reaching the limit at which they can provide water services sustainably, especially in arid regions. Nearly two-thirds of the world’s population is predicted to face water shortages by 2025. This worrying trend is causing many to pose the question: “ are we running out of water ”? 

The short answer is yes, primarily driven by climate change and global population growth. We explore what other causes are there and the major effects of it around the world. 

Causes of Water Shortage

Droughts and Climate Change

Water shortages occur due to a number of factors; one of the biggest drivers of water scarcity is drought. Drought is a natural phenomenon in which dry conditions and lack of precipitation – whether it is rain, snow or sleet –  occur over certain areas for a period of time. 

While the amount of rainfall can naturally vary between different regions and times of year, climate change and rising global temperatures are altering rainfall patterns, which in turn, impact the quality and spatial distribution of global water resources. Warmer temperatures mean that moisture in soil evaporates at faster rates, and more frequent and severe heat waves exacerbate drought conditions and contribute towards water shortages. 

These conditions also create the perfect breeding ground for wildfires, further fuelling drought season and water stress. In the 2018 Intergovernmental Panel on Climate Change (IPCC) report , climate scientists say that groundwater stored in aquifers, which provides 36% of the world’s domestic water supply for over 2 billion people, is highly sensitive to future climate change. They also concluded that wet regions are expected to get wetter while dry regions will get drier. 

In China for example, the Yangtze and Yellow Rivers are two major water resources that support the country. They rely on the glacial meltwater from the Qinghai-Tibetan Plateau. Global warming, where temperatures in the glacial region rose by 3- 3.5C over the past half-century, has produced less snow and ice mass , causing glacial run-off into the Yangtze to be reduced by 13.9% since the 1990s. 

Poor Water Management and Growing Demand

Today, the world’s population is just short of eight billion people, which translates to a growing demand for water amid water stress from climate change. Urbanisation and an exponential increase in freshwater demand for households are both driving factors behind water shortages, especially in regions with a precarious water supply. 

For example in 2018, Cape Town, South Africa experienced a water crisis and became the first modern city to effectively run out of drinking water as a result of extreme drought, poor water resource management and overconsumption. 

Likewise, China is also at risk of running out of water due to poor water management. Each year, total renewable water resources per inhabitant is estimated at about 2,018 cubic metres , which is 75% less than the global average, according to the World Bank.

Water Pollution

Contaminated and unsafe water is another contributing factor of water shortages. Water pollution already kills more people each year than war and all other forms of violence combined. As we only have less than 1% of the Earth’s freshwater accessible to us, human activity is actively threatening our own water resources. Water pollution can come from a number of sources, including sewage and wastewater – more than 80% of the world’s wastewater flows back into the environment without being treated, and agricultural and industrial runoff, where pesticides and toxic chemicals leach into the groundwater and nearby freshwater systems. Consequently, precious water resources get contaminated, resulting in less freshwater and drinking water available. 

You might also like: 4 Countries with Water Scarcity in 2022

Effects of Water Shortage

The United Nations states that having free access to freshwater is a basic human right. And losing that access to drinking water can be detrimental to human health and lives, as we all need water to survive. However, water scarcity and shortage can lead to other serious impacts on the environment and threaten global peace and security as well. 

Food Insecurity 

We need water to produce food that we eat. Today, around 70% of freshwater withdrawals go into agriculture, from irrigation and pesticide to fertiliser application and sustaining livestock. As the global population continues to grow, agricultural production is required to expand by another 70% by 2050 to keep up with demand, thereby redirecting even more freshwater resources. 

In February 2021, the UN World Food Program reported that severe drought caused by record dry conditions has left an estimated 13 million people facing hunger in the Horn of Africa. Intense and prolonged droughts have decimated food crops and caused high rates of livestock deaths, causing food prices to soar. Families are struggling to buy and secure food as a result, while high malnutrition rates are occurring across the region. The UN warns should the situation worsens, it will spark a humanitarian crisis. 

You might also like: Water Crisis in South Africa: Causes, Effects, And Solutions

Increased Human Conflicts

One of the biggest effects of water shortage is that it prompts increased competition between water users, thus potentially sparking conflicts, which could potentially put millions of lives at risk. 

In India, drought has triggered serious conflict between water users at the local level, many of whom depend on water for their livelihoods. At a broader level, India has been in conflict with its neighbouring country of Pakistan over water disputes, among other political issues. The two nations have clashed over the control of upstream water barrages and infrastructure projects for decades, which regulated water flow into Pakistan. Water mismanagement and climate change are exacerbating these diplomatic tensions; The Himalayan Glaciers, which feed the Indus Basin, are predicted to diminish further in the coming year and deplete groundwater recharge in the long run.

Similarly, in Egypt, its water supply is being threatened by the development of the Grand Ethiopian Renaissance Dam on the upstream stretch of the Nile River. Though the dam brings huge economic and social benefits for Ethiopia and generate energy to two-thirds of the population, Egypt could potentially lose as much as 36% of the total water supply as the dam reduces water flowing downstream. Egypt could resort to military action to protect its water resources. 

You might also like: The Looming Colorado Water Shortage Crisis

Water Is Now Traded as a Commodity 

Water has recently joined gold, oil and other commodities that can be traded on Wall Street , prompting fears that the market could dramatically further exacerbate the effects of water shortage and increase competition. 

The US’s water trade market, the first of its kind, was launched in 2020 with USD$1.1 billion in contracts tied to California water prices. It allows farmers, hedge funds, and municipalities to hedge against future water availability in California. While this could clear up uncertainty around water prices, treating water as a tradable commodity puts basic human rights in the hands of financial institutions and investors.

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Essay on Drought

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Drought is a disaster which affects many regions of India every year. A natural disaster which leads to a shortage of water for drinking, agriculture and other practices is called a drought. However, we are yet to come up with some concrete measure in order to avoid this adverse situation through which the people have to go through each year.

Audience: The below given essays are exclusively written for school students (Class 5, 6, 7, 8, 9, 10, 11 and 12 Standard) and college students.

Drought is a severe condition in which some regions face a heavy shortage of water. There are some countries which are nowadays struggling with an insufficient amount of water. This situation occurs due to factors like climate change, deforestation or global warming.

In some areas, starvation as a result of drought, leads to the death of several people. Drought also affect the production of crops, causes forest fires and leads to insufficient electricity production.

It is important to adopt some solutions to tackle this issue. We can use methods like rainwater harvesting, seawater desalination or grow more plants and trees. The whole world is familiar with the misuse of water resources which needs to be overcome in order to prevent droughts.

The prolonged absence of rain or the lack of natural sources of water can bring about a drought. This natural phenomenon has been occurring all through the history of mankind and it has shaped many civilizations in the past. Droughts are something that people fear and it is also something that can be brought about by our actions towards our surrounding. One is compelled by practical reason to consider what actions can bring about potentially cataclysmic events like droughts and since I am still a student there is a lot I can do, further on as I go through life, to contribute to reasonable water usage.

The earth has its own principle of functioning and it changes our surrounding often and without warning, that’s why droughts sometimes happen even though we do nothing, in particular, to make them come about. When such events occur, people use different techniques to find alternative sources of water. The best we can do in such situations is to find tools that we can use to help us predict what the movement of water will be, or how much rain will fall.

On the other hand, we tend to misuse our natural resources and to drain them. That is why the recent decades have seen many rivers dry out due to our extensive agricultural needs. The lack of water brought about droughts in many regions that were previously famed for their natural wealth. Thankfully, people are becoming aware of how they are behaving and through this awareness, we are developing new methods for water use and distribution, it is up to us to implement those changes and make fear of the great drought a thing of the past.

“Drought” which results from the shortage of water due to lack of rainfall. The situation is challenging and can prove to be catastrophic for those living in the drought-affected areas.

Causes of Drought:

The Marathwada region of Maharashtra suffers from “drought” condition every year. There are various factors responsible for causing a “drought” like situation.

Some of these are discussed below:

1. Deforestation:

The main cause of “drought” is deforestation, which leads to a shortage of rainfall. Trees and shrubs hold the ground water, prevent it from evaporation and attracts rainfall. Deforestation is carried out to clear the land for farming, industrialization and urbanization. The soil in these areas loses its capacity to hold water, which also leads to “drought” condition. The devastating flood in the beautiful state of Kerala has become one of the biggest catastrophe in recent times.

2. Diminishing Water Bodies:

The usage of water bodies like rivers and lakes is done on a huge scale. During scorching summers these rivers and lakes are dried which result in dreadful “droughts”. Due to extreme climatic condition and various human activities, the water in these water bodies dries down which leads to “drought”. Wells are also a main sources of water in various regions in the country. Villages and towns in the states of Maharashtra and Gujarat are facing life threatening situation where water in the wells has dried up. People in these villages stand in long queues to purchase water for drinking and daily needs.

Effects of Drought:

The farming sector in India is the most vulnerable to the climatic condition. Most of the agriculture in India is dependent on rainfall and ground water. “Drought” like situation has tremendously affected the farming sector and animal husbandry in India. The scorching sun sucks the ground water and becomes fatal to the cattle.

Measures to Prevent Drought:

Droughts can be prevented by –

i. Planting more trees.

ii. Implementing water conservation techniques.

iii. Reducing wastage of water and water pollution.

Conclusion:

Although initiatives like the “Paani Foundation” are being taken to mitigate “drought” condition in India but not much is done till date. As a responsible citizen we must contribute to the efforts taken to combat “drought” condition so that our future generations will not face such crisis.

The problem of drought is very severe and there are plenty of different provinces in India which are being largely impacted. It is really important for people at large to understand that the time calls for taking some strict measures at the earliest.

We have exploited mother earth in a ruthless manner and owing to the anthropogenic exploitation; the natural balance of the ecosystem has been disturbed. This in turn has led to plenty of troubles which include drought.

Drought – Getting Familiar:

Drought mainly refers to the condition wherein the area receives almost negligible to nil rainfall making it a dry period. This can be really deadly for the farmers as most of the harvest won’t ripen and it has several adverse consequences. Granted there are artificial methods of irrigation and the option of water supply but not all farmers have access to these facilities. This infers that drought ends up wrecking havoc on their finances and the families of the farmers sometimes even end up committing suicide or dying because of starvation.

Remedial Measures:

This brings us to the question as to what can be done to remedy the situation of drought. The answerer lies in helping the environment. The environment has the power to heal itself, but we need to be supportive in our approach. It is extremely important to understand the grave concerns and the bleak future that awaits us.

Drought isn’t the only calamity which we are facing. The increased frequency of earthquakes, flash floods, depleting ice cover, striking change in climates are all symbolic of the piteous condition of our environment. Until and unless, we manage to educate the masses and enlighten them about the need to have a green cover and preserve the environment, the frequency of drought and other calamities will continue to be on the rise. More and more measures need to be taken and the ruthless exploitation of the environment needs to stop right away.

We know that it is easier said than done but the change needs to start from somewhere. You should make it a point to understand the possible areas wherein you can bring a change. Try by curtailing the cutting down of trees even if it is for development purpose. Use measures to combat pollution and stop the use of non bio-degradable products. It is the collective efforts which will end up making a huge difference.

Drought is a natural calamity which is an impending sign of the dark future which this planet might be enveloped in if we do not take the right action now!

What is a drought? As per the given definitions, it is a natural disaster resulting in scarcity of water for drinking, agriculture and industrial purposes. But, given the current scenario, is it actually a natural disaster. This may not be completely true as human activities over a period of time have resulted in altering of nature’s natural phenomenon and today we see droughts occurring at places which were once abundant with water resources. Hence there is a strong need to understand the causes of drought and what can be done to prevent or minimize it.

Drought Prone Regions in India:

Some states of India have been declared as drought-prone due to the frequent occurrence of drought year after year in these states. These states are Rajasthan, Andhra Pradesh, Orissa, Maharashtra and Northern Karnataka. Apart from these many regions, Gujarat, Uttar Pradesh and parts of other states are also affected by drought every year.

India is a land which is dependent on monsoon rainfall for adequacy of water. Hence inadequate rainfall is considered as the major reason for drought in most parts of the country. However, this is again a subject of debate as to why there has been insufficient rainfall for quite some years now. Another reason is the drip in the water table and consequently less water vapour in the atmosphere which is responsible for the formation of clouds.

Again global warming has led to changes in the normal climatic conditions and with the increase in temperatures; there has been a significant effect on the monsoon season in India as well. Moreover, high sea temperatures have led to the El Nino effect taking place which has further affected the onset of monsoon season. All these factors combined with improper agricultural practices and increase in pollution levels have contributed to the reduction in the monsoon rainfall which has led to drought each year in many areas in India.

What should be done?

There is an urgent need to have measures in place in order to save the regions of India from drought. One of the major plans of the Government in this regard is the linking of rivers. If we are able to link the rivers we can divert excess rivers from region to the drought-affected areas and save them from this disaster. Another important measure is to have proper irrigation methods in place so as to utilize water only as much as it is required. Moreover, extracting of water through tube wells and other sources should be checked into as this leads to drip in the water table which triggers the onset of drought.

Last, but not least, it is not the responsibility of the government alone to have measures in place to prevent regions from being affected by drought, we all should ensure that we save water to the maximum and follow the rules as laid down by the Government. We should do rainwater harvesting as well so that we store the water provided to us by nature which shall be helpful in difficult times. A collective effort by all can surely be helpful in minimizing if not preventing the situation as adverse as drought.

Introduction:

Drought is a miserable condition caused due to lack of water in a particular region or country or territory for a long period of time. Drought is a natural calamity in which there is scarcity of water everywhere even for the basic needs. People in many countries suffer due to drought and many lose their lives since lack of water leads to lack of food. The impact of drought is very horrible and sometimes it becomes difficult for the affected country to recover to a normal state.

The main reason for drought to occur is the absence of rain. When the normally falling rain fails for a few months then there arises water scarcity. Wells become dry and people and other living beings start to move from one place to another in search of water.

Although lack of rainfall is the main cause for drought , there are also other causes that lead to such a condition.

The various causes of drought are:

Now-a-days people are mis-treating the environment. Why there is no rain? What causes rain? Everyone should ask these questions to themselves to know the real cause of drought. Trees are the main source of rainfall. When we cut trees for constructing buildings, we are not only removing the vegetation and greenery but also removing the main source of rainfall from the Earth.

2. Draining of Surface Water:

Rivers, lakes, ponds are the natural ways by which water is stored in the Earth. Activities like excessive irrigation, excessive use of water for industrial purposes drains the surface water from these natural reservoirs and cause a condition known as drought. Rise in temperature due to global warming is also a cause for draining of water.

Impacts of Drought:

The impact caused by drought is so huge that many countries that faces drought year on year still remains as under-developed countries. The day-to-day activities of the people get stopped. The severity of drought can even take many lives. Let us look into some of the major impacts:

1. Heavy Loss to Farmers:

Agriculture is the source of living for the farmers. Periodic rainfall and the availability of ground water is very much important for agriculture. Drought impacts farmers the most because if there is no rainfall, agriculture fails. There is no yield, plants die, livestock suffers and farmers end up with no income. They get debts to try other ways and make their living but when everything goes out of control, they have no other way than to end their lives. Severe droughts lead to increase in the number of farmer suicides.

2. Loss of Wildlife:

It is during the time of drought, forest fires start occurring. Since everything is dry, fire catches up very easily. The life of wild animals is at huge risk; some get burnt in the forest fires and some lose their habitat and have to move to some other place.

3. Soil Degradation:

Continuous drought will make the soil lose its moisture and fertility. We can see at many places where there are no rains, the lands will have cracks on them. Some areas regain their fertile soil after many years of rain but some totally lose their nature to yield crops.

4. Safety is at Risk:

The scarcity of food leads to increase in prices of commodities. As the droughts might have taken the employment of some, no income would push people to commit crimes such as theft.

There are some ways that people can try to manage drought. Few important ones are listed below: –

People can use rain water harvesting method to save and store rain water and use it at emergency times like drought.

Waste water must be collected, purified and re-used. The water thus stored can be used for watering plants and can be used for irrigation also.

Afforestation techniques can be adopted.

Drought has huge consequences but it is not the end. If everyone of us contribute their share in preserving the environment, then many hazards like drought can be managed very easily.

Drought is a natural disaster that occurs in some regions of the globe. Some regions are more prone to drought while other regions are not. In India, drought has been experienced and a lot of people have died. Drought causes death of humans, animals and plants due to the adverse conditions that are harsh to the ecosystem and limits survival. In disaster management, drought is considered among the threats to human and animal life. Drought is defined as a prolonged period of inadequate water and food. The periods of drought vary but lack of water for over two weeks is considered drought.

During drought, the ecosystem is negatively affected that is why agriculture is compromised and it results in lack of food. The effects of drought are both to the animate and inanimate objects in the environment. Drought is handled by disaster management teams by provision of water and food to the affected people and prevention of further effects like fires on dry vegetation. Drought can occur naturally due to dry seasons or can result from human activities that causes a change in climate.

Lack of rainfall for long periods of time results in drought. Rain formation or precipitation processes require moisture accumulation in the atmosphere or on the ground as ice. Sunshine and winds can affect the precipitation processes as it affects the formation of water.

Another cue of drought is the natural dry seasons whereby low humidity is experienced. During the dry season, water sources dry up due to high temperatures that increase vaporization. In the high demand for vapor, extreme measures like drawing water from plants is reached which results in death of those plants.

Human activities could also result in drought. Agriculture and human settlements result in deforestation. Deforestations predispose the environment to erosion of soil and vegetation destruction. The lack of vegetation and forests causes decreased rainfall in the region and could cause drought occurrence.

Climatic changes also result in drought. Human activities like emission of greenhouse gases to the environment has caused global warming. In global warming, climate change is experienced such that the temperatures on the surface of the earth are raised. Raised temperatures result in increased vaporization and depletion of water from rivers, boreholes. Effects of global warming have been determined to be either extremes of rainfall or drought.

Consequences of Drought:

Drought causes adverse effect on the ecosystem. Interruption and loss of biodiversity is experienced during drought because animals of several species die due to lack of water and food. Also, the living things like trees and vegetation die. Diseases also arise during seasons of drought that affect living things and cause death. Extinction of rare species is common during seasons of drought.

The losses experienced in the economy during drought are substantial. Drought causes death and deterioration of plants thus decreasing the agricultural economical activities. There will be inflation of food production costs and diminished water economic activities like tourism and energy production.

Health of both animals and plants is greatly affected by drought. Drought effects cause diseases like dehydration and malnutrition that are debilitating to both humans and plants. Extreme hunger for humans and animals cause death.

Drought Management:

Once drought has occurred, the protection of people and animals should be done. In disaster management, the focus is on mitigating the consequences and providing life sustenance to those affected by the disaster. In agriculture, methods of irrigation and crop rotation have been implemented in arid areas so as to mitigate the consequences of drought. Water harvesting is also essential in preparation for drought. In water harvesting, construction of dams and boreholes in arid areas has been helpful during seasons of drought.

Erosion is minimized through crop rotation. Water conservation methods like recycling and outdoor use restrictions have been employed in arid areas.

In conclusion, drought is a natural disaster whose effects are adverse and cause loss of life. The management of drought generally involves the water conservation, storage and expansion of sources of water. The consequences of drought are deleterious and destruct the ecosystem and loss of biodiversity.

In order to reduce the consequences of drought, several measures have been put in place. Disaster management teams have conducted projects for water conservation for use during drought like by constructing dams. Mitigating the consequences of drought also involved the inhibition of causes of drought. Mitigation of erosion through planting enough vegetation to prevent erosion goes a long way in preventing drought. Human activities should also be controlled.

Drought can simply be defined as a form of natural disaster that is a result of the precipitation in a particular region below average which results in prolonged periods of water supply shortage, be it ground water, surface water or rainfall water. Droughts can go on for a lot of months or even years; it is most times declared and claimed after about just 15 days.

The agriculture and ecosystem of a particular region can be substantially impacted by drought and this can lead to a great deal of harm on the economy of the region. It has been discovered that the probability of a drought taking place and bush fires occurring is increased significantly by the dry seasons annually. Drought conditions are significantly worsened by long heat periods and this is as a result of the hastened evaporation of vapours of water.

There are a lot of species of plants like the Cactaceae family that have adaptations for the tolerance of drought (like a reduce area of leaf and cuticles that are waxy to help improve their drought tolerance ability). There are other species of plants that survive periods of droughts as seeds that are buried.

Grasslands and Deserts are examples of arid biomes that are produced by droughts that are semi-permanent. Humanitarian crisis and mass migrations are caused by prolonged droughts. Majority of ecosystems that are arid have very low productivity. The world experienced its longest period of drought in Atacama Desert of Chile and the drought lasted for about 400 years.

There are a lot of causes of drought.

A few out of the many causes will be discussed below:

1. Climate Changes:

Droughts are triggered by all the various activities that result in climate change globally and this can have a very strong effect on agriculture all over the world most especially in countries that are developing. Global warming and climate change will bring about an imbalance in the ecosystem.

There is going to be erosion and flooding in some regions and drought in other regions. Therefore, it is quite obvious that climate change and global are one of the leading causes of drought in the world today.

2. Deficiency in Precipitation:

Precipitation is produced through mechanisms including orographic rainfall, strati-form rainfall and convective rainfall. The processes of convective rainfall involve vertical motions that are strong and can lead to the atmosphere overturning in that particular location in about an hour, causing heavy precipitation. The processes of stratiform precipitation involve upward motions that are weaker, a little bit less intense and can last a duration that is longer.

We can divide precipitation into about three categories; this is based on if it falls in form of liquid water, water in liquid form that freezes when it comes in contact with a surface and ice. Droughts mainly occur in areas that the normal rainfall levels are quite low. If the factors in the region do not help the volume of precipitation in a way that they can get to the surface in time, drought occurs. Drought can also be triggered through a very high reflected sunlight level.

3. Dry Season:

In the tropic regions, we have distinct dry and wet seasons and this is as a result of the Monsoon trough. The occurrence of drought is greatly increased during dry seasons, this season is known by the very low humidity and rivers and watering holes drying up. As a result of the inadequacy of watering holes and rivers, a lot of animals that graze migrate because of the absence of water and move to areas that are more fertile. Some of the animals that do this include wildebeest, elephants, zebra and cattle.

As a result of the absence of water, bushfires are very common during this season. Because of the increased temperature, the water vapour tend to become more energetic, to increase the relative humidity to 100%, required water vapour is more. When it is warm, the rate of vegetable and fruit production is increased and this causes an increase in transpiration and evaporation from plants leading to drought conditions that are worse.

Types of Drought :

With the persistence of drought, all of the various conditions that surround it worsen gradually and the effect on the region increases gradually.

There are three major types of droughts:

i. Meteorological drought is a type of drought that occurs anytime we have a prolonged period of below average rainfall or precipitation. It is common for meteorological drought to precede other types of drought.

ii. Agricultural drought is a type of drought that affects the ecology and production of crops in a particular region. Agricultural drought can also happen independently as a result of a change in the levels of precipitation when erosion and soil conditions that are triggered by agricultural endeavours that are poorly planned lead to a drop in the amount of water that is available for crop use. However, traditional droughts are caused by a period of precipitation that is below average.

iii. Hydrological drought is a type of drought that occurs when the available water reserves in sources like reservoirs, lakes and aquifers drop below average. Hydrological drought takes a lot of time to manifest since it deals with water that has been stored and is used and not replenished.

The effects of water shortages can be grouped into three namely:

i. Social effects

ii. Economic effects

iii. Environmental effects

Droughts can also cause wars, wildfires, social unrest, and drop in electricity production, mass migration, hunger, famine and so many more.

Prevention Measures:

Prevention measures include:

i. Building of Dams

ii. Cloud seeding

iii. Desalination

iv. Proper Drought monitoring

v. Proper Land use

vi. Rainwater harvesting

vii. Restriction of water use outdoors

viii. Use of Recycled water

Drought can be very detrimental to the ecosystem and can also have a lot of effects. It is therefore extremely necessary that we do our possible best to battle drought and try to employ methods of drought relief, mitigation methods to prevent drought.

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Essay on Drought

Students are often asked to write an essay on Drought in their schools and colleges. And if you’re also looking for the same, we have created 100-word, 250-word, and 500-word essays on the topic.

Let’s take a look…

100 Words Essay on Drought

Understanding drought.

Drought is a natural event that happens when an area gets less rain than normal. It can last for months or even years.

Causes of Drought

Droughts often occur due to lack of rain. Sometimes, high temperatures can also cause drought by making water evaporate from soil and plants.

Effects of Drought

Drought can make it hard for plants and animals to survive. It can also lead to water shortages for people. In severe cases, drought can cause famine.

Dealing with Drought

People can deal with drought by conserving water, using it wisely, and planning for dry periods.

Also check:

• Paragraph on Drought

250 Words Essay on Drought

Introduction.

Drought is a natural disaster characterized by a prolonged period of abnormally low rainfall, leading to a shortage of water. It is a complex phenomenon that can have serious ecological, social, and economic impacts.

Droughts are primarily caused by irregularities in global weather patterns. Climate change has been identified as a significant factor, with increasing global temperatures leading to changes in rainfall patterns and increased evaporation rates. Human activities, such as deforestation and overuse of water resources, can also exacerbate drought conditions.

Impacts of Drought

Drought can have severe consequences for both the environment and human societies. It can lead to crop failure, livestock death, and water shortages, impacting food production and access to clean water. This can consequently lead to malnutrition, disease, and death, particularly in vulnerable populations. Economically, droughts can result in increased prices and job losses in agricultural sectors.

Drought Mitigation

Mitigation strategies for drought include water conservation, efficient irrigation techniques, and the development of drought-resistant crops. Additionally, improving climate forecasting can help societies prepare for and manage drought conditions. Policymakers must also prioritize sustainable water management to ensure that water resources are used efficiently and equitably.

Drought is a pressing global issue that requires concerted efforts to mitigate its impacts. By understanding its causes and consequences, we can develop effective strategies to manage drought and reduce its harmful effects on society and the environment.

500 Words Essay on Drought

Drought, a natural disaster characterized by a prolonged period of insufficient rainfall, is a global phenomenon with profound impacts on both human and ecological systems. It is a complex, multi-dimensional issue that involves various aspects of climate, hydrology, and human activities.

Droughts occur when there is an extended period of below-average precipitation. This deficiency of water supply can last for months or even years. Droughts are categorized into three types: meteorological, agricultural, and hydrological. Meteorological droughts are associated with reduced rainfall, agricultural droughts with soil moisture deficits affecting crop production, and hydrological droughts with reduced water availability in streams, reservoirs, and aquifers.

The primary cause of drought is a lack of precipitation over an extended period. This can be due to natural climate variability, such as the El Niño Southern Oscillation, or changes in atmospheric conditions that suppress the formation of clouds and rainfall. Human activities, such as deforestation and overuse of water resources, can also contribute to the occurrence and severity of droughts.

The impacts of drought are far-reaching and can be devastating. They affect the environment, economy, and society. Environmental impacts include reduced water quality, loss of wildlife habitat, and increased risk of wildfires. Economically, drought can lead to crop failure, livestock death, and increased food prices, affecting food security. Social impacts include displacement of people, health issues due to lack of clean water, and increased conflicts over scarce water resources.

Drought Management and Mitigation

Effective drought management requires a proactive approach, focusing on reducing vulnerability and enhancing resilience. Strategies can include improving water infrastructure, implementing water conservation practices, and developing drought-tolerant crops. At the policy level, it involves developing comprehensive drought management plans, early warning systems, and drought risk insurance. Climate change adaptation strategies also play a crucial role in drought mitigation.

Drought is a significant global challenge that requires concerted efforts to mitigate and adapt. While it is a natural phenomenon, human activities have exacerbated its occurrence and impacts. Therefore, understanding drought, its causes, impacts, and management strategies is essential for sustainable development and resilience. As we move forward, it is crucial that we continue to enhance our knowledge and strategies to better manage and mitigate the effects of droughts.

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• Published: 23 April 2024

Down-to-earth drought resistance

Nature Plants volume  10 ,  pages 525–526 ( 2024 ) Cite this article

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• Plant breeding

Drought is a serious threat to global food security. In upstream research, crop drought-tolerant traits are often studied under extreme drought conditions, which can seem irrelevant in the eyes of breeders.

Although wildfire may have positive ecological function (as we discussed in our February editorial 1 ), drought — its related, but seemingly lesser, stressor — is harmful or even devastating, particularly to agricultural ecosystems. Drought develops gradually and its start or end can be difficult to identify, but its effects are often long-term and catastrophic. Climate change is predicted to lead to more frequent and severe droughts in many parts of the world. Last year was one of the hottest and driest in historical record, and people in the Horn of Africa suffered particularly badly 2 ; a record that is likely to be surpassed all too soon. Breeding drought-resilient crops is often proposed as a solution for mitigating the negative outcomes of drought and has become an important and urgent goal for global research communities. But this endeavour is impeded by the gap between basic research and breeding practice.

A Comment published in Nature 3 in September 2023 highlighted that many previous publications have oversold the effects of their reported genes in yield gain. Out of 1,671 reported yield-increasing genes, only one showed constant yield benefits in maize across years and locations in a large-scale field trial. Without close collaborations between molecular biologists (or geneticists) and breeders, unrealistic field trials have overestimated the agronomic effects of tested genes. The authors proposed five criteria for evaluating yield gain in field trials, including standardized definitions of yield, and multiple-location and multiyear experiments.

Drought resistance is also a complex trait that is defined differently under different scenarios, and is greatly affected by the environment. This complexity causes a similar disconnect between genetic studies and the breeding of drought resistance. Multiple breeding programmes have been undertaken worldwide by large research units such as the International Rice Research Institute (IRRI) and the International Maize and Wheat Improvement Center (CIMMYT) in pursuit of drought-resistant crops. At the same time, molecular biologists and geneticists continue to report the cloning of genes with drought resistance or tolerance traits, but these genes are rarely beneficial to crop breeders. As drought resistance expert Lijun Luo said at a recent conference in Sanya last month, “out of the over 300 rice functional genes claimed to increase drought resistance, none of them has been successfully applied in breeding!”

The main problem, according to Luo, is that these molecular studies focus on ‘drought tolerance traits’ rather than ‘yield under drought’. There is a well-established trade-off between stress tolerance and the productivity of plants; many wild relatives of crops exhibit strong stress tolerance but poor yield potentials. Conversely, upland rice varieties, such as IRAT109, that display stable yield under drought tend to have very poor drought tolerance (according to Luo). Improving the drought tolerance of crops without considering yield in the field is shooting at the wrong target.

If IRAT109 is not drought tolerant, then the question arises of what guarantees its yield stability under drought. The answer is its elite drought avoidance. It has long been realized that drought resistance can be achieved by multiple traits that are broadly classifiable into three main types: drought escape (by short life duration), drought avoidance (by deeper root distribution) and drought tolerance 4 . Scientists who use model plants such as Arabidopsis and rice to study drought resistance mechanism often focus on drought tolerance traits — such as the ability of plants to survive drought when dehydration has already occurred in the plant tissues — using water deprivation or polyethylene glycol treatment to screen for resistance. The resultant phenotypes often bestow a higher survival rate of the plants under drought or a higher recovery rate during rehydration, but not necessarily a higher yield. Without deciding beforehand the specific drought-resistant trait that is needed to improve the productivity of the specific crops in the target environment, laboratory-based studies can become aimless and futile.

Knowledge about environments is also important. According to the levels of yield loss (from 85% to 40%) under drought, Kumar et al. classified drought stresses as very severe, severe, moderate and mild 5 . Henry and Torres in the IRRI tested the performance of several rice varieties and found that the varieties that are adapted to mild and moderate drought with stable yield are different from the varieties adapted to more severe drought stress 6 . As mild drought stress affects a large proportion of drought-prone rice-growing areas in the world, a laboratory experiment that applies severe stress treatment can hardly be expected to identify genes that are useful in most drought-affected areas. In addition, droughts can be of different durations (short or long), different frequencies (continuous, intermittent or once per season) or occur at different growth periods of the crop. Crops use different drought-resistant traits or mechanisms to adapt to these types of droughts. Purely laboratory-based research can oversimplify drought stress treatments and so fail to understand the severity or types of droughts that are agriculturally relevant 7 .

In a paper published in 2021, Xiong et al. 8 reported that climate change has increased the ranking changes of wheat varieties in breeding trials over the past four decades. In other words, the relative performance of crop varieties is becoming less easy for breeders to predict. However, breeding trials targeted to drought or heat stress environments have not been affected. Breeding trials would also benefit from precisely targeted agronomically relevant stress environments.

To better cope with future droughts, drought-related crop research needs precision. Molecular biologists must cooperate with — or at least consult — agronomists to better understand their needs. It is certainly informative to study a drought avoidance trait such root architectures or a drought tolerance trait such leaf rolling 9 , but it is also crucial to monitor yield under drought. Moreover, high-yielding and widely planted varieties make a more appropriate genetic background than poor-yielding model genotypes when testing for drought resistance in the real world.

The natural variations of crops held in their wild relatives or in adapted landraces (such as upland rice) provide a valuable genetic resource to help to balance yield and drought resistance. The increasing availability of their genomes provide opportunities for researchers to identify the genes or quantitative trait loci that are most likely to complement the current breeding pool for drought resistance. Better evaluation of these materials, followed by their utilization in precision drought research, will hasten the development of resilient crops.

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Free Causes and Effects of Worldwide Drought Essay Sample

Climatic changes have been recorded and are forecasted to continue increasing the frequency in occurrence of floods and drought in the world. These changes haves had significant effects on the global agricultural sector and other sectors of the global economy. Worldwide drought strikes in many places in several occurrences and the effects of these phenomena are very significant. This paper is a critical analysis of the issue, worldwide drought, its causes and impact on human, plant and animals. Drought is one of the world’s major natural hazards. On the causes of global drought, the paper will focus on the human or artificial and natural triggers of the phenomenon. The different impacts of drought will also be discussed in this document. Some of the consequences of the events in the paper will be the social, economic and environmental impacts of drought. The paper will also include a discussion on the pros of the topic in relation to solving world environmental and health problems caused by drought. The paper will provide some recommendations as proposed by experts and world organizations on how to combat the issue and come up with sustainable solutions.

Introduction

Drought, defined as the deficit of water in the atmosphere, a phenomenon that is experienced as a result of many factors. Since the beginning of the 20th century, the global climatic conditions have changed, and the effects have been felt and will continue affecting the world's population unless people come up with strategies to prevent and stop further environmental destruction. One of the major challenges will be encountered by many nations in the world in the future decades are the means to increase agricultural production with the decreasing water capacity. The increasing human and animal population continues to increase the scramble for water.

Unfortunately, the global fresh water capacity cannot satisfy the needs of every living organism that requires the resource. It is estimated that only 2.5% (35 million km³) of 1400 million km³ is fresh water that is accessible, while the rest is salty, ice and glacier that is inaccessible. The annual global precipitation is approximately 119000 km³, whereby more than half of the rainwater is naturally returned to the atmosphere through evaporation. 45000- km³ exists as surface run and is reserved in the lakes, part of the water infiltrates into the ground aquifers leaving only a small percentage as accessible and usable.

Worldwide drought is among the deadliest natural disasters that have claimed most lives over the past decades. Since the year 1994, the disaster has claimed more than two hundred thousand lives. In defining drought, it is crucial to understand the difference between drought and dryness. The condition is classified as moderate, severe or extreme according to the prevalence and impacts on the environment. The hazard is the server in hot climatic conditions where water is a scarce resource under human, animal and vegetation competition. The arid and semi arid regions are susceptible to occurrences of drought because their precipitation amount relies on a few short rainfall seasons.

Causes of Worldwide Drought

The natural hazard is as a result of many factors. The causes of drought are categorized into human factors and natural factors. To begin with, we identify the human causes of global drought. Humans have engaged in activities that have had adverse environmental effects. Trees are essential in the reduction of carbon dioxide (which acts as a heat absorbent) in the atmosphere. Deforestation is one of the unnatural causes of drought. The continuous cutting down of trees for fuel, construction materials and industrial purposes has led to the reduction in soil’s water holding capacity and thus causing desertification. These human activities have resulted in the increase in global temperature and deterioration of the global climate. In the absence of enough trees, the temperatures are retained causing a high evaporation rate with low condensation and precipitation. The soil is also weakened by lack of humus and the plant roots that act as binding properties of the soil particles.

Another human activity that causes drought is the construction of dams in the upstream parts of rivers. These developments are economically advantageous in generating electricity and preservation of water but also have adverse effects on the downstream parts of rivers. The dams and large water reservoirs cut off the flow of downstream water leading to the shortage or lack of water in the lower regions. The lack of water may cause dryness that result in famine.

Apart from trees, other vegetation covers such as grass and weeds are essential in protecting the soil from erosion and water loss. Overstocking, overgrazing of animals and over cultivation of land can lead to the loosening of soil particles and reducing the water holding capacity and soil fertility. The loam top soil also become loose and is blown away by the wind thus the soils slowly become agriculturally unproductive thus adding to the drought severity. A good example, overgrazing resulted to the Dust Bowl drought of the 1930s in North America that formed from soil erosion and dust storms over the Great Plains.

The industrial revolution era led to the beginning of technological civilization in the worlds. This period saw the increase in the number of industries globally. However, industrialization introduced a new form of environmental degradation. Industrial gaseous emissions into the atmosphere have lead to the formation of carbon gases layer that leads to global warming. The industrial gases released into the atmosphere have resulted in the destruction of the protective O-Zone layer and thus causing an increase in global temperature and frequent drought occurrences. Studies in regions such as America and East Africa have revealed that green house emissions from industries have led to increase temperatures and aridity in the world.

Other human activities that trigger drought event include the lack of sufficient water storage facilities, water pollution, lack of a sustainable mechanism for increasing the available water capacity, poor mechanisms of water distribution network and inappropriate water consumption patterns. These human factors are avoidable if the national governments can formulate and implement strategies to improve water usage and generation.

Nature also causes drought. One of the natural causes of the problem is the deficiency of precipitation. Water vapor in the atmosphere causes rainfall through the convention that results in strong atmospheric inversion and produce heavy rainfall or stratiform process that causes less precipitation in an area. Drought occurs if the three factors fail to provide sufficient amount of water in a region. High-pressure systems and winds carrying continental air rather than oceanic vapor may lead to the lack of rainfall in an area. Also, high rate of sunlight reflection may also trigger a severe drought in a region.

Prolonged dry seasons also trigger drought in the world. In the tropics, the Intertropical Convergence Zone results in the dry and wet seasons. During the dry season, humidity in the air is insufficient, water sources like rivers and boreholes dry up, and also vegetation dies out. Insufficient humidity leads to excess evaporation of ground moisture and high rate of evapotranspiration in plants, a condition that worsens the drought occurrence.

El-Niño, which affects the temperatures in the ocean, is another cause of worldwide drought. El Niño is the change in sea surface temperature changes that cause a change in global climate. This event causes a movement of the air masses above the seas and ocean bodies causing the wet regions to become dry. During the winter season, the northern hemisphere experiences warmer and dryer conditions that during the regular times. After the El Niño heavy rainfall, La-Nina, a period of severe cold and dry conditions may lead drought in parts of Africa, California and Australia.

Finally, global warming has resulted in the occurrence of floods and drought in the world, and it anticipated increasing the frequency and intensity of the hazard. Global warming causes the disappearance of glaciers and polar ice, rising above sea level, destruction of the corals and changes in wildlife migration patterns. The phenomenon causes the occurrence of sudden heat waves that trigger insects and pest infestation, forests and bush fires and diseases prevalence in animals and plants.

Effects of World Wide Drought

A worldwide drought has significant impacts on the global population and the environment. The impacts of global drought can be divided into Social effects, Livelihood and Economic, Environmental and Ecological and Psychological impacts. It is important to access these results so as to understand the magnitude of the issue and develop effective measures to combat it.

Social consequences of drought involve the human health and safety, conflicts that arise as a result of competition for food and water, low living standards, and aids during the disaster. The scarcity of water posses risks on human health. Human beings and animals require water for daily refreshment and domestic consumption. Inadequate amount of safe, fresh water leads to outbreaks of diseases. The concentration of chemicals and oxygen insufficiency in water comes as a result of lack of fresh water to dilute toxins. According to statistics by the World Disaster Report, 2.63 million people were affected by dryness in the period between 1997 and 2006 with 38.87% suffering most in 2002, while approximately 41.82% suffered from drought consequences.

Death of people and livestock is another adverse social effect of drought. Approximately, the number of human beings killed by drought every year are, Asia -81.11 million, Africa (26.69 million), American are 2.57 million and in Europe 0.14 million lives are lost. These deaths occur as a result of dehydration, lack of food and diseases drought associated diseases.

In water-limited areas, people live a poor quality lifestyle. Families tend to live on little or no income in events of prolonged inadequate rainfall. People who rely on agricultural production experience poverty whenever drought strikes as a result of the destruction of their crops and death of livestock. Poverty, which means living below $1.25 a day, destroys the families’ ties and they end up getting into unending domestic conflicts. Inter- community and intra-community violence may also arise as a result of competition for water sources as people try to claim control over few water points. People and animals also compete for this scarce resource leading to human-wildlife conflicts. Violence may also erupt as a consequence of human and animal migration to places with plenty of water.

Drought, like every other natural disaster, has its adverse effects on human psychology. In times of such an event, people suffer from stress, anxiety, depression and withdrawal symptoms. People are scared of prolonged situations that could cause death and human suffering. Psychological poverty also strikes persons in periods of no rainfall. This poverty is aggravated by a feeling of mistrust on the authorities and view that other people do not care about their suffering. An example is the Australia’s 1994-95 drought, whereby the citizens exhibited little or no trust in the government and the experts who issue false predictions of the drought.

Economic impacts of drought are also significant to understand. Adverse effects are experienced in the agricultural and another related economic sectors. Farmers who rely on precipitation to produce their crops are faced with frustrations as a result of the destruction of farm produce and huge losses incurred as a result of unexpected rainfall failure. During drought seasons, farm business owners tend to reduce capital purchases, seek other sources of employment, and sell stocks and decrease frequency and level of farm maintenance practices. Besides, drought is also connected to insects and diseases infestation on crops thus increasing the cost of maintenance in holdings. The death of animals causes a great shock on the farmers and industries that rely on the animal product such as meat, milk, eggs and skins.

During drought, farmers incur losses, capital flow reduces, and there is the high rate of unemployment, increased taxes and high risks on financial securities. The governments increase their expenditure in a bid to import food and other commodities that exhibit shortage in the drought-stricken country. The World Disaster Report recorded that more than 4% of the US$ 66.8 b damage cost is incurred as a result of drought. The affected countries also experience energy shortage as a result of the shortage of water that generates hydroelectric power. Industries experience the lack of agricultural raw materials and other inputs such as timber and animal products. Finally, government debt rises when the affected nation as a result of deficit expenditure on food, water and electricity exports from other countries or states.

Environmental impacts of drought are also significant in understandings the severity and effects of drought. Adverse environmental consequences include soil erosion, bush fires, destruction of natural plants and animal species and drying of water sources. The destruction of natural habitats leads to migration of animals, birds and insects to other unaffected regions posing overpopulation, disease spread and competition risks. Frequent drought occurrences in the world result in the expansion of the dry areas. The dry regions of the world are expected to increase as a result of the expanding atmospheric circulation patterns. These patterns involve the rising of moist tropic air and descending as dry air in the subtropics.

Pros of the Topic

The topic has several pros concerning the understanding drought. The topic tries to trace the factors that result to the occurrence of global drought. Understanding the causes of the issue enables the government to develop policies that prevent environmental degradation. In the America, the government accessed the causes of California drought the state and federal governments developed strategies and policies that prevent the people from further destruction. The governments have established rules and policies regulation logging in the bid to reduce deforestation. Another measure taken by the California government is imposing fines on anyone found misusing water or polluting the sources of water.

The topic has been widely used by the United Nations Organization (UNO), through UNEP (United Nations Environmental Program) and other international communities. Accessing the causes and impacts of drought has enabled global authorities to establish policies, such as the Carbon Tax, which seek to regulate some carbon emissions from factories. An example is the Australia’s carbon tax policy that stands at $24.15, since 1 st July 2012. These policies are crucial in reducing the severity of global warming and its effects. Researchers have developed recommendations that assist in regulating the overstocking and grazing of animals among the pastoral communities.

The topic is also important in developing strategies used to help victims of the drought. The IMF and other international financial institutions have set aside funds for disaster management. The UN has come up with various refugees programs that aim at assisting drought refugees and victims. The governments can reduce the severity of the impacts of drought by study the signs of the consequences. The world population can use the topic to acquire knowledge about drought, its causes, consequences and methods of preventing and combating drought.

Worldwide drought is defined as the precipitation deficiency that extends over a long period. The natural calamity causes a reduction of the world’s total water capacity of 119000 km³. Worldwide drought is among the fierce natural calamities that have claimed most lives over the past decades with more than 250000 deaths experienced since the year 1994. The disaster in caused by some factors that are classified in natural and human factors. Artificial causes include deforestation that results to desertification, upstream dams construction, industrial emissions and overgrazing of animals. Natural causes of drought include the ocean currents, global warming, prolonged dry seasons and the El Nino.

The impacts of global drought are felt social, economically, psychologically and even in the environment. Stress, poverty, inflation of prices of the scarce resources, bushfires, and erosion, are some of the common effects of the natural calamity. It is crucial for everyone to study the topic on causes and effects of worldwide drought for the purpose of learning measure to prevent and combat future occurrences of this global disaster. The question is important when learned in learning institutions and through media networks to equip people with sufficient education about drought.

The increasing rate of climatic change demands that governments should introduce national disaster mitigation policies that are efficient and sustainable. . The organizations such as World Meteorological Organization and UN Convention to Combat Desertification (UNCCD in collaboration with other agencies are working hard to come up with the long lasting solutions to fight the disaster. The World Meteorological Organization (WMO) Sec-Gen Michel Jarraud observed that the climatic change is expected to continue worsening, and he called for risk-based national drought policies. The global human population should exercise responsibility when interacting with nature to avoid environmental degradation that triggers drought. The world meteorological organizations should develop strong means of predicting and preparing for future occurrence of worldwide drought. These strategies will help to reduce the severity of the problem

In conclusion, drought is a natural disaster that has to shape the world today and will continue to influence life in the world. It is important that people and animals should carefully interact with the environment to avoid artificial triggers of the issue. The topic of causes and effects of worldwide drought is one of the most important studies that should be introduced in the world’s education system.

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Home — Essay Samples — Environment — Drought — Drought In African Countries: Effects And Possible Solutions

Drought in African Countries: Effects and Possible Solutions

• Categories: Drought

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12 min read

Published: Jun 9, 2021

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Table of contents

Impact of drought in rural african communities, possible solutions in overcoming severe effects of droughts, works cited.

• Adelana, S. M., & MacDonald, A. M. (2008). Challenges to sustainable groundwater development in Africa. In Groundwater in the Celtic Regions: Studies in Hard Rock and Quaternary Hydrogeology (Vol. 324, pp. 111-118). Geological Society, London.
• Calow, R., MacDonald, A., & Nicol, A. (2010). Developing groundwater for secure rural water supplies in Africa. In Proceedings of the Institution of Civil Engineers-Water Management (Vol. 163, No. 2, pp. 71-76). Thomas Telford Ltd.
• Devereux, S., & Maxwell, S. (2001). Food security in sub-Saharan Africa. ITDG Publishing.
• Lovell, C. (2000). Gender, rural livelihoods and household water security: Case studies from Zimbabwe and Lesotho. Progress in Development Studies, 2(4), 283-305.
• Overseas Development Institute. (2017). Water, livelihoods and resilience in sub-Saharan Africa. Retrieved from https://www.odi.org/publications/10826-water-livelihoods-and-resilience-sub-saharan-africa
• OCHA. (2004). Ethiopia: Food crisis and public health emergency. United Nations Office for the Coordination of Humanitarian Affairs.
• ODI. (2017). Water and food security: Key lessons from a review of water-related interventions in development programming. Retrieved from https://www.odi.org/publications/10991-water-and-food-security-key-lessons-review-water-related-interventions-development-programming
• World Food Programme. (n.d.). Addressing water scarcity in Africa. Retrieved from https://www.wfp.org/news/addressing-water-scarcity-africa
• World Bank. (2018). Groundwater governance in Africa: A review of common challenges and best practices.
• Yatenga Documentation Centre. (n.d.). The story of Yatenga.

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Drought Pushes Millions Into ‘Acute Hunger’ in Southern Africa

The disaster, intensified by El Niño, is devastating communities across several countries, killing crops and livestock and sending food prices soaring.

By Somini Sengupta and Manuela Andreoni

An estimated 20 million people in southern Africa are facing what the United Nations calls “acute hunger” as one of the worst droughts in more than four decades shrivels crops, decimates livestock and, after years of rising food prices brought on by pandemic and war, spikes the price of corn, the region’s staple crop.

Malawi, Zambia and Zimbabwe have all declared national emergencies.

It is a bitter foretaste of what a warming climate is projected to bring to a region that’s likely to be acutely affected by climate change, though scientists said on Thursday that the current drought is more driven by the natural weather cycle known as El Niño than by global warming.

Its effects are all the more punishing because in the past few years the region had been hit by cyclones, unusually heavy rains and a widening outbreak of cholera.

‘Urgent help’ is needed

The rains this year began late and were lower than average. In February, when crops need it most, parts of Zimbabwe, Zambia, Malawi, Angola, Mozambique and Botswana received a fifth of the typical rainfall.

That’s devastating for these largely agrarian countries, where farmers rely entirely on the rains.

In southern Malawi, in a district called Chikwawa, some residents were wading into a river rife with crocodiles to collect a wild tuber known as nyika to curb their hunger. “My area needs urgent help,” the local leader, who identified himself as Chief Chimombo, said.

Elsewhere, cattle in search of water walked into fields still muddy from last year’s heavy rains, only to get stuck, said Chikondi Chabvuta, a Malawi-based aid worker with CARE, the international relief organization. Thousands of cattle deaths have been reported in the region, according to the group.

The first few months of every year, just before the harvest begins in late April and May, are usually a lean season. This year, because harvests are projected to be significantly lower , the lean season is likely to last longer. “The food security situation is very bad and is expected to get worse,” Ms. Chabvuta said.

Local corn prices have risen sharply. In Zambia, the price more than doubled between January 2022 and January of this year, according to the United Nations Food and Agriculture Organization . In Malawi, it rose fourfold.

The F.A.O. pointed out that, in addition to low yields, grain prices have been abnormally high because of the war in Ukraine, one of the world’s biggest grain exporters, as well as weak currencies in several southern African countries, making it expensive to buy imported food, fuel and fertilizers.

Why it’s happening

According to an analysis published Thursday by World Weather Attribution, an international coalition of scientists that focuses on rapid assessment of extreme weather events, the driving force behind the current drought is El Niño, a natural weather phenomenon that heats parts of the Pacific Ocean every few years and tweaks the weather in different ways in different parts of the world. In Southern Africa, El Niños tend to bring below-average rainfall.

El Niño made this drought twice as likely, the study concluded. That weather pattern is now weakening, but a repeat is expected soon.

The drought may also have been worsened by deforestation, which throws off local rainfall patterns and degrades soils, the study concluded.

Droughts are notoriously hard to attribute to global warming. That is particularly true in regions like Southern Africa, in part because it doesn’t have a dense network of weather stations offering detailed historical data.

Scientists are uncertain as to whether climate change played a role in this particular drought. However, there is little uncertainty about the long-term effects of climate change in this part of the world.

The average temperature in Southern Africa has risen by 1.04 to 1.8 degrees Celsius in the past 50 years , according to the Intergovernmental Panel on Climate Change, and the number of hot days has increased. That makes a dry year worse. Plants and animals are thirstier. Moisture evaporates. Soils dry out. Scientific models indicate that Southern Africa is becoming drier overall .

The Intergovernmental Panel on Climate Change calls Southern Africa a climate change “hot spot in terms of both hot extremes and drying.”

The costs of adaptation

To the millions of people trying to cope with this drought, it hardly matters whether climate change or something else is responsible for why the skies have gone dry.

What matters is whether these communities can adapt fast enough to weather shocks.

“It’s really important that resilience to droughts, especially in these parts of the continent, should really be improved,” said Joyce Kimutai, one of the authors of the study and a researcher at the Grantham Institute, a climate and environment center at Imperial College London.

There are existing solutions that need money to put into effect: early warning systems that inform people about what to expect, insurance and other social safety programs to help them prepare, as well as diversifying what farmers plant. Corn is extremely vulnerable to heat and erratic rains.

Golden Matonga contributed reporting.

Somini Sengupta is the international climate reporter on the Times climate team. More about Somini Sengupta

Manuela Andreoni is a Times climate and environmental reporter and a writer for the Climate Forward newsletter. More about Manuela Andreoni

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'So hot you can't breathe': Extreme heat hits the Philippines

by Cecil MORELLA

Extreme heat scorched the Philippines on Wednesday, forcing thousands of schools to suspend in-person classes and prompting warnings for people to limit the amount of time spent outdoors.

The months of March, April and May are typically the hottest and driest in the archipelago nation, but conditions this year have been exacerbated by the El Niño weather phenomenon.

"It's so hot you can't breathe," said Erlin Tumaron, 60, who works at a seaside resort in Cavite province, south of Manila, where the heat index reached 47 degrees Celsius (117 degrees Fahrenheit) on Tuesday.

"It's surprising our pools are still empty. You would expect people to come and take a swim, but it seems they're reluctant to leave their homes because of the heat."

The heat index was expected to reach the "danger" level of 42C or higher in at least 30 cities and municipalities on Wednesday, the state weather forecaster said.

The heat index measures what a temperature feels like, taking into account humidity.

The Department of Education, which oversees more than 47,600 schools, said nearly 6,700 schools suspended in-person classes on Wednesday.

There was a 50 percent chance of the heat intensifying in the coming days, said Ana Solis, chief climatologist at the state weather forecaster.

"We need to limit the time we spend outdoors, drink plenty of water, bring umbrellas and hats when going outdoors," Solis told AFP.

Solis said El Niño was the reason for the "extreme heat" affecting swaths of the country.

Around half the country's provinces are officially in drought.

'It's really hot here'

The northern municipality of Aparri endured a heat index of 48C on Tuesday, the highest in the country, and was expected to hit 45C on Wednesday.

The actual maximum air temperature was 36.4C (97.5F) on Tuesday, with 35C forecast for Wednesday.

"It's really hot here," Eric Vista of the municipal disaster agency told AFP.

Vista said a shower of rain on Tuesday night offered some temporary relief but it was "back to being super hot" on Wednesday.

Sweltering temperatures in the capital Manila forced more than 400 schools to switch to remote learning. The heat index reached 45C on Tuesday and was expected to hit 44C on Wednesday.

Tuesday's actual high in the city was 37.1C.

In drought-stricken Occidental Mindoro province, government employee Mary Ann Gener said people working indoors where there was air conditioning were fine.

"But it's terrible for those outside," she said.

"You get a headache immediately after you go out. You really need to hydrate."

In Dagupan city, north of Manila, university employee Edz Alteros said she and her colleagues no longer went out for lunch because of the heat.

The heat index there reached 47C on Tuesday.

"We get somebody to buy food and we eat inside the office," Alteros, 27, said.

"The air conditioning is set at 14-18C during the hottest part of the day, but we ease up at other times to prevent the aircon breaking down."

Global temperatures hit record highs last year, and the United Nation's weather and climate agency said Tuesday that Asia was warming at a particularly rapid pace.

The Philippines ranks among the countries most vulnerable to the impacts of climate change.

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