Drought

Drought is when extended periods pass with no rain, and the ground water supplies become depleted.

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What problems do people face during droughts?

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Lack of water for crops and animals Water rationing (e.g. no watering lawns, reducing toilet flushes, showers instead of baths) How to conserve water in previously "water rich" areas Higher water prices Price gouging for bottled water trucked in from other regions
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Does a drought have weather geologic or human cause?

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If a drought has a geographical cause, it is not called a drought but a desert. Natural deserts tend to occur in the rain shadows of mountains, far from oceans, or under Hadley Cells. With the exception of problems caused by volcanoes, the weather phenomena caused by geographical features usually remains constant. A drought is frequently caused by weather. An El Nino means the Pacific Ocean is warmer off the coast of Peru and the Indian Ocean is cooler off the coast of Africa. More water evaporates and turns to rain when the ocean is warmer. A La Nina means the opposite. Less water evaporates and turns to rain when the ocean is cooler. That creates a drought. In the Western United States, people have sold "water rights," which gives people downstream the rights to unimpeded stream flow. As a result many beaver dams were destroyed. With that destruction, a lot of land dried up. That caused conditions to become dryer. That created a man made drought. In Asia much of the land in the center of the empire of Timerlane suffered from over grazing. That created a drought. Thus, a drought can be caused due to either weather or human activity.
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Where does water go in a drought?

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Water is always being used up by plants evaporation irrigation it get soaked into the ground. During a drought climatic conditions are such that the rain that usually falls either does not form or the winds drive the weather that has rain to other places. when the plants use up all the water and the air is dry and hot that is whats a drought is
Asked in Fuel and Engines, Heating AC and Engine Cooling, Drought

Why would your engine die on long trips during the summer with the AC on?

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There can be many possibilities. Check for the below: a) Your A/C compressor is faulty and putting a heavy load on your engine, which causes the engine to run hot. b) Your valve adjustment is incorrect. c) Fuel pump stops working when hot. d) ignition coil weakens when it becomes very hot.
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Difference between drought and aridity?

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drought wants water or rain but aridity is just dry but it don`t want any water
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What are the effects of droughts?

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Rise in Temperature Droughts may be linked to a rise in temperature which may bring insects like locusts and mosquitoes. Hunger and famine In a drought there may be not enough water to grow crops, or enough grass and grain to feed animals. Food prices will go up and only the rich can buy. If there is no food people go hungry, and if the drought goes for a long time there may be famine, when people die. Thirst Humans, animals and plants and trees all need water to survive. Humans can only live a few days without water. Disease If there is no water for drinking, bathing or even flushing toilets, there can be a wide range of dangerous diseases. Land Degradation If there is no water the plants holding down the soil will die, and winds can quickly strip the land of topsoil. The natural habitat of native animals is damaged and some may not survive. Wetlands and lakes may dry up. Bushfires When there is no water everything dries up, including the forests and bush. Lightning strikes or carelessness often starts huge bushfires that burn animals, houses and property. Humans are also killed in bushfires. Economy The country's economy may suffer as it may have to import food and support farmers and unemployed and starving people. Social conflict and war It there is no water people will fight to get what little there is. There may be wars in the future over water, when countries hold back river water from flowing on to a neighbouring country. Migration or relocation In times of drought, people may leave their homes and search for somewhere better. These refugees may not easily find another home. crops will die and there will be not enough for everyone The after effects of drought are shortage of water and famine. it makes everything dry
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How does drought affect the habitat and how do species survive this sudden change?

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During a drought, most of the plantlife dies. Animals move to places where there is water and once it begins to rain again, plants begin to grow from remaining seeds and then animals return.
Asked in Steering and Suspension, Waste and Recycling, Green Living, Drought

Can rear axle repair bearings be used on a cargo van that travels a lot of miles last any length of time how long?

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i've installed them in one of my customers work trucks, within a few months he returned with a similar problem. i replaced the differential and ha has not had a problem since. i've installed them in one of my customers work trucks, within a few months he returned with a similar problem. i replaced the differential and ha has not had a problem since.
Asked in Definitions, Drought

What is the definition of a drought?

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A drought is an extended period of months or years when a region notes a deficiency in its water supply. Droughts are harmful to people because without rain water, the crops in the fields suffer and the wells for drinking water are depleted. It is bad for the economy in general and for farmers in particular. Further information: Drought may be a result of the El Nino phenomenon, which brings dry conditions to some parts of the world for sometimes as long as several years at a time. It increase the likelihood of desertification. Desertification and drought form a vicious circle as desertification increases drought-like conditions, and makes it increasingly difficult for the land to recover. Desertification may occur as a result of man's intervention in the environment, particularly activities such as deforestation and cutting down trees, over-grazing of stock animals, or farming unsuitable crops for a region (e.g. rice, which has to have large amounts of water pumped to it).
Asked in Drought

What are the effects of a drought in Australia?

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The term "drought" generally has different degrees of meaning, depending upon the normal climate of the country where drought is occurring. For example, in a tropical country, where heavy rainfall is the norm, drought may refer to a period of a matter of mere weeks without rain. In its truest sense, though, drought is an extended period of lack of rain, which has economic repercussions on the country. In a country such as Australia where droughts continue for years, this may have the following effects: hinders a farmer's income by limiting his ability to produce crops and/or healthy livestock drives up prices of goods due to limited supply increases inflation as a result of price increases contributes to unemployment as businesses, suffering loss of profits, are forced to close down and farms are forced to sell up increases the danger of bushfires, duststorms and other drought-related natural disasters increased desertification, i.e. once fertile land becomes desert, a situation from which the land rarely recovers causes people to relocate, thus contributing to the death of towns causes death to native animals, not only from lack of food and water, but also because drought can drive introduced species such as foxes and feral cats, which tend to be hardier than the native animals, to kill more native animals in the quest to survive. In less developed countries, drought leads to famine. It also causes diseases as there is less water available for basic hygiene and sanitation. Although not yet an issue in Australia, wars have even been fought over access to available water. See also the related question.
Asked in Environmental Issues, Australia Natural Disasters, Drought

Do the aboriginals have anything to do with the drought in Australia?

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The Aborigines have nothing to do with the drought in Australia. It is more likely to be the effects of white man and his earlier tendency to clear land for tha sake of greed, rather than considering the long-term effects of his actions. Before European settlers arrived and started their campaign of massive land-clearing, the Australian continent had its regular seasons of wet and dry, but most likely not the debilitating long periods of drought that many regions endure these days. The effects of drought are exacerbated by overgrazing livestock, which leave the earth bare. The introduced rabbit has had a similar effect. Some may believe the Aborigines placed a curse on Australia when their land was invaded and they were forcibly removed. For those who believe in the power of curses, they may also believe the Aborigines have something to do with the drought. Science would say otherwise ... but then ... science cannot always explain everything. Many Aboriginal methods of traditional hunting and gathering was done so as not to impact negatively on their surroundings. Traditional Aborigines used fire responsibly to help the regeneration purpose, and they moved on to new food sources with the seasons, always ensuring there was enough left to replenish and regenerate the supply for the following year. It should be noted that the Aborigines themselves have suffered greatly in past droughts. In 1902, a severe drought affected central Australia, where European settlement and influence was still minimal, yet the Aborigines were dying from starvation. Whilst European settlement can certainly be blamed for the exacerbation of drought conditions, this event alone indicates that drought is often a natural situation which occurs regardless of man's activities.
Asked in Drought

How long did the Australian drought last for?

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Most areas of Australia have permanent drought conditions.
Asked in Drought

How does drought occurs?

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Most of the times drought occur due to lack of rains in that place which results in the drying of wells, lakes, rivers and underground water sources and eventually leading to water scarcity and thus leading to drought.
Asked in Environmental Issues, Australia, Drought

Why is it that the icebergs are melting yet Australia is in drought?

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When an iceberg melts, its water goes mostly into the ocean and very little evaporates to make clouds. Most of the moisture that makes rain clouds comes form the evaporation of sea water. So the icebergs that melt have an insignificant impact on the humidity in the air that is needed for rain cloud formation.
Asked in Drought

What causes drought?

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A drought is an extended period of significantly below average precipitation in a region. Severe droughts occur commonly in the interior and towards the western coast of continents, particularly Africa and Australia. However, they can occur anywhere, and with different levels of severity. Drought is an abnormally long period of dry weather because there is a severe lack of water in an environment over an extended period of time. For a drought to happen, it means that rainfall has fallen below the average necessary to water crops and/or livestock, and to refill dams for months at a time. When moisture near the ground rises into the colder areas of the upper atmosphere rain clouds form. High pressure in the atmosphere causes air to rise instead of falling, resulting in dry, sunny weather. When high pressure cannot be displaced by low-pressure for an extended period of time, the result is drought. Lack of rain may be a result of the El Nino phenomenon, which brings dry conditions to some parts of the world for sometimes as long as several years at a time. This is why the southern continents of Africa and Australia are particularly prone. Desertification is a vicious cycle which increases drought-like conditions, and makes it increasingly difficult for the land to recover. Desertification may occur as a result of man's intervention in the environment, particularly activities such as deforestation and cutting down trees, over-grazing of stock animals, or farming unsuitable crops for a region (e.g. rice, which has to have large amounts of water pumped to it). Some recent droughts are believed to have happened because of global warming.
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What are the human causes of droughts?

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Columbia University scientists have linked recent water shortages in the northeastern United States with human activities. "Researchers at The Earth Institute say the recent water emergencies in some northeastern states resulted from more than just dry weather. They found droughts had a more direct, human cause called demand-driven drought. A recent study, conducted by Bradfield Lyon of the International Research Institute for Climate and Society, Nicholas Christie-Blick of the Lamont-Doherty Earth Observatory and Yekaterina Gluzberg from the university's Department of Ecology, Evolution and Environmental Biology, examined precipitation variability and drought in Rockland County, N.Y., over the last 100 years. The scientists discovered factors such as development, population growth and failing water supply systems played as significant a role as climate in creating the water emergencies. "The balance between water demand and supply is now so finely tuned that even a few months of lower than normal precipitation is sufficient to trigger an emergency," said Christie-Blick. The research appeared in a recent issue of the Journal of the American Water Resources Association."
Asked in Plumbing, Pollution, Drought

How do you detach a plastic water supply valve that is connected to a copper water supply pipe?

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More than likely you'll have to cut the supply pipe off behind the valve or loosen the large nut on the valve which would release the valve from the compression ring...then just replace the valve, if that is what you are attempting to do.
Asked in Drought

How does El Nino cause drought?

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El Niño is a weather phenomena which tends to occur in tropical waters of the Pacific Ocean. It affects the region across the Pacific from New Guinea to South America. During an El Niño season, which occurs on average every 2-7 years, a shift in ocean currents and winds brings warm water in a westerly direction, displacing the usual cold water that comes up from the ocean depths. As well as affecting marine life, the El Niño has an effect on weather patterns. Under normal conditions, in the tropics warm oceans tend to be accompanied by heavy rains, resulting in heavy rains in the warm west Pacific while the cooler east Pacific receives far less rainfall. This is reversed during an El Niño, when the ocean temperature gradient from one side of the Pacific to the other weakens. Warmer than usual ocean temperatures cause droughts in the west, while the unusually warm eastern waters bring heavy rains and floods to the Pacific coast of South America, which is usually much drier. It's all a matter of interactions between the oceans and the atmosphere. Changes in sea surface temperatures causes a shift in air pressure which, in turn, can result in climatic anomalies, such as severe droughts, flooding and even cyclones. One of the effects is that the normal circulation patterns over the Pacific are disrupted, and moisture-bearing trade winds weaken, whilst drier westerlies increase.
Asked in Drought

What is the effect on the natural environment of droughts in Australia?

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The drought is wrecking Australia's environment by killing our animals because they have nothing to drink and die off thirst, no water left in the creeks or dams, and the local aboriginies wnt have animals to kill so therfore everyone is bad off when there is a drought in there country ,town , or city.
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How do you stop droughts from happening?

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Unfortunately, you can't stop a drought from happening it is a natural disaster and like most natural disasters you can't stop them.
Asked in World War 2, Australia, Drought

What effect did the American soldiers have on the Australian people?

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Wasn't there a great kind of "soldier riot" that took place in Sydney, that was suppressed by the war censors? I've seen the photos. Heaven forbid there be any publicity, during a war, about "allies" not getting along!
Asked in Environmental Issues, Climatology and Climate Changes, Drought

Which countries are affected by droughts?

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Australia is drought prone, and as at 2007 is in drought conditions. See the Web Link to the left ' Living with Drought' for an Australian perspective. Other countries that experience drought include Russia, and many of the African countries such as Sudan, Ethiopia, and countries adjoining the major deserts.
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What are preventive measures of drought?

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We can do the following to prevent drought: 1. Grow more trees 2. Develop irrigation facilities by building dams 3. We should indulge in rain water harvesting 4. Save water to prevent drought 5. Spraying water on the base of the plants so that less water is used 6. Growing drought resistant crops like millets, maize and sorghum 7. Build a canal to divert water 8. Store water for future generations 9. Put more wells and tubewells 10. Store water when get a good rainfall
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Where is the most common place to have a drought in Australia?

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All parts of Australia are subject to drought. However, the eastern coast is least likely to have a drought, meaning that virtually anywhere inland of teh great Dividing Range is more likely to be affected.