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Within the past week or two, Europe, Texas, Boston and the Pacific Northwest have all faced intense and deadly heat waves. But do these weather events have global warming's fingerprint on them?
The short answer: Yes and no, or at least some of them. Increased greenhouse gases in the atmosphere means what we consider extreme will happen more often, and the extremes will get more extreme. Not every hot day can be traced back to global warming to but climate change supercharges these events, and makes more more common within each season.