Yes, of course, there are fluke cases of cold snaps that global warming skeptics like to point to as some sort of definitive proof. But that doesn't erase a hundred years of evidence that winters are becoming less winter-y. Numbers don't lie. MAP HINT: Click on a state to see its history and where it ranks in the fastest-warming states for a 43-year span. Toggle to the 100-year map to get a glimpse of those stats, too. Click "back to map" in the upper-right to get back to the U.S. map.