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Drought - Wikipedia

en.wikipedia.org/wiki/Drought

A drought is a period of below-average precipitation in a given region, resulting in prolonged ... Prolonged droughts have caused mass migrations and humanitarian crises. Most arid ecosystems have i...

Causes of Drought

drought.unl.edu/droughtforkids/whatisdrought/causesofdrought.aspx

Drought has many causes. It can be caused by not receiving rain or snow over a period of time. We learned in the discussions about the water cycle and weather  ...

What factors are responsible for droughts to occur? - eSchooltoday

eschooltoday.com/natural-disasters/droughts/factors-that-cause-droughts.html

What causes drought? drought info Lack of rainfall (or precipitation) Droughts can occur when there is the lack of 'expected' precipitation (rain and snow).

Droughts: Questions and answers (U.S. Geological Survey)

water.usgs.gov/edu/qadroughts.html

What causes droughts? A drought is a period of drier-than-normal conditions that results in water-related problems.

BBC - GCSE Bitesize: Human activities causing drought

www.bbc.co.uk/schools/gcsebitesize/geography/water_rivers/drought_rev1.shtml

A secondary school revision resource for GCSE Geography on the causes and impact of droughts.

Drought - Causes and Stages - Geography - About.com

geography.about.com/od/globalproblemsandissues/a/drought.htm

A comprehensive overview of drought. The definition of drought, the causes of drought, economic effects of drought, and how drought can be controlled.

Drought Causes, Types, and Resources - Weather - About.com

weather.about.com/od/drought/f/droughts.htm

The cause of droughts is easily understood, but hard to prevent. Depending on the location, crop failures, famine, high food prices, and deaths can occur. One of  ...

What Causes Drought? - Green Living - LoveToKnow

greenliving.lovetoknow.com/environmental-issues/what-causes-drought

Includes: physical causes of drought, the human connection, climate change and drought, and guarding against dry times.

Physical Processes that Cause Drought - NASA Earth Observatory

earthobservatory.nasa.gov/Features/NAmerDrought/NAmer_drought_2.php

Recurring droughts are common in the American West, and a 2008 report from the U.S. Climate Change Science Program cautions that they may become more  ...

Drought | Weather Wiz Kids

www.weatherwizkids.com/?page_id=89

Drought has many causes. It can be caused by not receiving rain or snow over a period of time. If you live in a place where most of the water you use comes from ...

More Info

Causes of Drought: What's the Climate Connection? | Union of ...

www.ucsusa.org

Learn about the different types of drought, the many factors that contribute to their development, and how climate change can have a significant effect on many of ...

What causes a drought? | Reference.com

www.reference.com

Droughts are caused by changes in land and sea surface temperatures, atmospheric circulation patterns and soil moisture content. A change in any one of these ...

Causes and Effects of Drought | Earth Eclipse

www.eartheclipse.com

Causes and effects of drought: During dry and hot weather periods, it is common to find dry and cracked earth without even a single shed of water or wet areas.