For those of us living in the Pacific Northwest of the United States or Canada, it’s hard to believe that this was an unusually warm year. We had one winter storm after another sweep through the region, and the same was true far north into British Columbia. Still, most of the United States this year was unusually warm. More seriously, much of the Arctic experienced record heat this year. Although they published their article in November 2016, I think it’s worth reading Chris Mooney and Jason Samenow’s work, “The North Pole is an insane 36 degrees warmer than normal as winter descends,” in the Washington Post. The temperature data, history of sea ice cover and map provide powerful evidence for the profound changes taking place in the Arctic now.