Weizman points out that the Syrian border city of Daraa falls directly on the aridity line. Daraa is where Syria’s deepest drought on record brought huge numbers of displaced farmers in the years leading up to the outbreak of Syria’s civil war, and it’s where the Syrian uprising broke out in 2011. Drought wasn’t the only factor in bringing tensions to a head, of course. But the fact that 1.5 million people were internally displaced in Syria as a result of the drought clearly played a role. The connection between water and heat stress and conflict is a recurring, intensifying pattern that spans
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