Scientific evidence has never been stronger. Why aren’t more people making the link?By Kiley PriceAt the end of August, devastating floods and a debris flow triggered by a glacier collapse crashed through the valleys of Nepal, killing more than 1,300 people. Earlier this summer, deadly heat waves plagued much of the United States and Europe. Meanwhile, record-low snow levels and a long-term drought stoked wildfires across the western U.S.