Global Dimming. BBC, 17 sep 2014
"The 1984 Ethiopian famine shocked the world. It was partly caused by a decade's long drought right across sub-Saharan Africa - a region known as the Sahel. ... But now there's evidence that the real culprit was Global Dimming. The Sahel's lifeblood has always been a seasonal monsoon. For most of the year it is completely dry. But every summer, the heat of the sun warms the oceans north of the equator. This draws the rain belt that forms over the equator northwards, bringing rain to the Sahel. But for twenty years in the 1970s and 80s the tropical rain belt consistently failed to shift northwards - and the African monsoon failed."
encyclopedia.com
Global Dimming. Larry Gilman, Encyclopedia, dec 2007.
"The effects of global dimming are disputed. A few studies have attributed the occurrence of some droughts to dimming: less solar radiation reaching the surface means less evaporation, which may have decreased rainfall and even caused famine in the Sahel region of northern Africa. However, this connection is far from proven."
