For mammals in the northern regions of the world, global warming must seem a little more real than it does to humans below the Arctic Circle. In 2004, the Arctic Climate Impact Assessment released a report called Impacts of a Warming Climate that revealed dire and immediate consequences of climate change for species ranging from polar bears to seals [1]. Temperatures in the Arctic are increasing at twice the rate of the rest of the world, according to the report. Sea ice is rapidly melting and breaking up at a rate of about 3% per decade[2], winters are shortening, and…