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A drought is an extended period of months or years when a region notes a deficiency in its water supply whether surface or underground water. Generally, this occurs when a region receives consistently below average precipitation. It can have a substantial impact on the ecosystem and agriculture of the affected region. Although droughts can persist for several years, even a short, intense drought can cause significant damageLiving With Drought</ref> and harm the local economy.
- Related: Climate change, Food security, Permanent wilting point, Topsoil, Water conflict, Water crisis, Drought in Australia, Drought in the United Kingdom, Drought in the United States, Maya collapse, Sahel drought
www.fao.org/nr/water/issues/scarcity.html - Web
US Drought Monitor
droughtmonitor.unl.edu - Web
US Economic Costs of Drought
www.economics.noaa.gov/?goal=climate&file=events/drought/ - Web
Gallery for «Drought»
Catastrophic drought is coming back
blog.longnow.org/.../ - Web