Whenever a cataclysmic weather event occurs—like Hurricane Harvey right now—there’s usually a heated political argument over whether or not it can be blamed on climate change. It turns out that there’s a field of research dedicated to assessing whether extreme weather can be attributed to climate change: it’s called extreme event attribution. There have been more than 140 peer-reviewed attribution studies of extreme weather events around the globe, which Carbon Brief has mapped here.
Carbon Brief’s analysis suggests 63% of all extreme weather events studied to date were made more likely or more severe by human-caused climate change. Heatwaves account for nearly half of such events (46%), droughts make up 21% and heavy rainfall or floods account for 14%.
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