A drought is an abnormally long dry period, when there is below-average rainfall in a particular region. It primarily affects agriculture, as there may not be enough water to irrigate crops. it can also lead to the loss of vegetation and livestock, and can cause soil erosion. If the ground becomes too dry, the grass crunches and loses its green color. In addition, droughts can take a toll on farmers, who rely on harvesting crops for their living. Droughts do this by taking away from the water that the crops need to grow.

2007 was marked by severe droughts in Australia, Turkey and in both the southwestern and southeastern United States. These droughts have generally been ascribed to climate change related to global warming which has been predicted to expand weather associated with subtropical deserts poleward. These zones are characterized by dry descending air.

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Countries and U.S. states

Countries and states that experience droughts:

  • Australia
  • Turkey
  • China
  • Canada
  • United States
    • California
    • Texas
    • Oklahoma
    • Kansas
    • Nebraska
    • Florida
    • Oregon
    • Washington
    • Idaho 
    • Nevada
    • Arizona
    • Montana
    • Georgia
    • South Carolina
    • North Carolina
    • Virginia
    • Iowa
    • Missouri
    • Mississippi
    • Tennessee
    • North Dakota
    • South Dakota
    • Indiana