“Fingerprints” of climate change are clear in Pakistan’s devastating floods
In this case, however, just how big a role climate change played isn’t clear. It’s relatively straightforward to conduct an attribution study that assesses the influence of warming in heat waves, where hotter average temperatures push up the baseline that such sweltering events take off from. The group has precisely calculated how much climate change altered the odds of the blistering Pacific Northwest heat wave last year (such conditions would be “at least 150 times rarer without human-induced climate change”), the…