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Global warming has both positive and negative impacts. However, very often only the negative consequences are reported and the positive ones omitted. This article will show an example of a positive effect of warming. The people living in the Sahel, a semi-arid area just south of the Sahara desert, spanning the entire African continent from the Atlantic Ocean to the Red Sea, were suffering from several devastating droughts and famines between the late 1960s and the early 1990s. The droughts were triggered by decreases in rainfall from the early 1950s to the mid-1980s. Global warming was supposed to increase the frequency and severity of the droughts, which would make crop-growing unviable and cause even worse famines. According to the United Nations, the outlook for the people in the Sahel was bleak.

However, in sharp contrast to this gloomy outlook, it seems that global warming has exactly the opposite effect on the Sahara and the Sahel. The Sahara is actually shrinking, with vegetation arising on land where there was nothing but sand and rocks before. The southern border of the Sahara has been retreating since the early 1980s, making farming viable again in what were some of the most arid parts of Africa.

Read the full article here.