Harvard Kennedy School Professor John Holdren and Jennifer Spence, the director of the Arctic Initiative at the Belfer Center for Science and International Affairs say the alarm bells ringing in the Arctic on everything from thawing permafrost to economic exploitation to great power rivalry are dire warnings for the rest of the world. It's one of the most remote regions on earth, but what happens in the Arctic doesn’t stay in there. Melting land ice in Greenland is the single biggest contributor to the sea level rise that is literally drowning Kiribati, a Pacific island nation that is home to 132,000 people and more than 6000 miles away. Worsening wildfires in the Canadian Arctic contributed to the rise in emergency room visits for people with respiratory problems in New York and Philadelphia last summer. Holdren and Spence say that for decades the Arctic has represented the best of humanity—a model of international cooperation where scientists, policymakers, and indigenous people ...