Why the Rains Failed – and Why They May Return

Traditionally the Sahel – a semi-arid strip of land, south of the Sahara Desert – is one of Africa’s most productive crop regions. But during the 1980s this region, which stretches from the Atlantic to the Red Sea, became better known for drought and famine. Thankfully the region has become wetter again, and now new research indicates that the return of the rains is most likely a beneficial side-effect of global warming.

Rainfall statistics show that between the 1950s and 1980s summer rainfall fell by around 40% across the Sahel, bringing the region to its knees. At the time scientists speculated that the drought was linked to poor land management, and a rapidly growing population. But newer data indicates that it may have been sulphate aerosols, produced by fossil fuel burning in Europe and North America, which slowed evaporation from the North Atlantic and cut off the Sahel’s moisture source.

http://www.theguardian.com/news/2016/jan/24/sahel-rainfall-drought

Viktor Dobai

#solar

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