Climate & ConflictClimate change and the origins of the Syrian war

Published 3 March 2015

A new study says a record drought that ravaged Syria in 2006-10 was likely stoked by ongoing man-made climate change, and that the drought may have helped propel the 2011 Syrian uprising. Researchers say the drought, the worst ever recorded in the region, destroyed agriculture in the breadbasket region of northern Syria, driving dispossessed farmers to cities, where poverty, government mismanagement, and other factors created unrest that exploded in spring 2011. A growing body of research suggests that extreme weather, including high temperatures and droughts, increases the chances of violence, from individual attacks to full-scale wars. Researchers project that man-made global warming will heighten future conflicts, or that it is already doing so. The new study, combining climate, social, and economic data, is perhaps the first to look closely and quantitatively at these questions in relation to a current war.

A new study says a record drought that ravaged Syria in 2006-10 was likely stoked by ongoing man-made climate change, and that the drought may have helped propel the 2011 Syrian uprising. Researchers say the drought, the worst ever recorded in the region, destroyed agriculture in the breadbasket region of northern Syria, driving dispossessed farmers to cities, where poverty, government mismanagement, and other factors created unrest that exploded in spring 2011. The conflict has since evolved into a complex multinational war that has killed at least 200,000 people and displaced millions.

The study was published in the Proceedings of the National Academy of Sciences.

“We’re not saying the drought caused the war,” said Richard Seager, a climate scientist at Columbia University’s Lamont-Doherty Earth Observatory who coauthored the study. “We’re saying that added to all the other stressors, it helped kick things over the threshold into open conflict. And a drought of that severity was made much more likely by the ongoing human-driven drying of that region.”

A Columbia University release notes that a growing body of research suggests that extreme weather, including high temperatures and droughts, increases the chances of violence, from individual attacks to full-scale wars. Some researchers project that manmade global warming will heighten future conflicts, or argue that it may already be doing so. Recent journalistic accounts and other reports have linked warfare in Syria, Iraq and elsewhere in part to environmental issues, especially lack of water. The new study, combining climate, social, and economic data, is perhaps the first to look closely and quantitatively at these questions in relation to a current war.

The recent drought affected the so-called Fertile Crescent, spanning parts of Turkey and much of Syria and Iraq, where agriculture and animal herding are believed to have started some 12,000 years ago. The region has always seen natural weather swings. Using existing studies and their own research, however, the authors showed that since 1900, the area has undergone warming of 1 to 1.2 degrees Centigrade (about 2 degrees Fahrenheit), and about a 10 percent reduction in wet-season precipitation. They showed that the trend matches neatly with models of human-influenced global warming, and thus cannot be attributed to natural variability.