A drought (or drouth [archaic]) is an extended period of months or years when a region notes a deficiency in its water supply. 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 damage and harm the local economy.

This global phenomenon has a widespread impact on agriculture. The United Nations estimates that an area of fertile soil the size of Ukraine is lost every year because of drought, deforestation, and climate instability. Lengthy periods of drought have long been a key trigger for mass migration and played a key role in a number of ongoing migrations and other humanitarian crises in the Horn of Africa and the Sahel.

Contents

• 1 Consequences
• 2 Globally
  • 2.1 Regions
• 3 Causes
• 4 Types of drought
• 5 Drought protection and relief
• 6 See also
• 7 References
• 8 External links

Noun

drought (plural droughts)

1. A period of below average rain fall, longer and more severe than a dry spell
2. (by extension, informal) A longer than expected term without success, particularly in sport.

References

• Notes:

1. ^ Oxford-Paravia Concise - Dizionario Inglese-Italiano e Italiano-Inglese (in collaborazione con Oxford University Press). Edited by Maria Cristina Bareggi. Torino: Paravia, 2003. ISBN 8839551107. Online version here

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