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| 2012 Sahel drought ： ウィキペディア英語版 |
2012 Sahel drought
Referring to the semiarid region of Africa that lies between the Sahara and the savannas, the Sahel region is a stretch of land across Africa, spanning from the Atlantic all the way to the Indian Ocean.〔 Countries included in this region are Senegal, Mauritania, Mali, Burkina Faso, Niger, Nigeria, Chad, Sudan, and Eritrea. Droughts occur quite often and tend to reduce the already measly water supply and destroy economies of developing countries.〔
== Future droughts of the Sahel Region ==
The droughts are becoming increasingly worse and more threatening due to an aridity trend. A possible explanation to the aridity trend is the supplements of an oceanography phenomenon called El Niño. An idea is that evaporation is occurring at higher rate due to the change in Sea surface temperature, this then impacts the amount of rain the Sahel region receives〔 Another factor to keep into consideration is the response of our atmosphere to stimulants like greenhouse gases and carbon emissions.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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