19 Sep '11, 5pm

Converting rainforest to cropland in Africa reduces rainfall via @mongabay

Converting rainforest to cropland in Africa reduces rainfall via @mongabay

Converting rainforest to cropland in Africa reduces rainfall mongabay.com September 19, 2011 Converting West African rainforests into cropland reduces rainforest in adjacent forest areas, reports research published in Geophysical Research Letters . The study, based on a computer model used to simulate rainfall under different land-use conditions, found that cutting down tropical forests in West Africa reduces precipitation over neighboring forest areas by about 50 percent due to increased temperatures over cropland areas. Higher temperatures affect the formation of rain clouds. "Rainfall was four to six times higher over warm areas (cropland) than when no deforestation has occurred, while rainfall over the remaining forest was half or less," stated a press release from the American Geophysical Union, which publishes Geophysical Research Letters . "The difference in rainfal...

Full article: http://news.mongabay.com/2011/0919-west_africa_rainfall.html

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Study finds that African deforestation reduces rainfall over remaining forest via @planetsave

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