Case study: the impact of drought in a developing country - the Sahel
The Sahel region is located directly south of the Sahara desert and stretches from the east to the west of Africa.
The Sahel is semi-arid, receiving between 250 and 450 mm of rainfall in an average year, which only falls in one or two months. This region provides Africa with food and cash crops such as millet and cotton.
The Sahel has experienced a series of droughts going back to at least the 17th century. The frequency of droughts increased from the end of the 19th century. Severe droughts occurred in the 1910s, 1960s, 1970s and 1980s. The most recent drought was in 2012.
The recent droughts are down to physical and human factors: