A Presidential Trip to Alaska

Photos by Andrew Harnik President Barack Obama crossed the Arctic Circle on Wednesday in a first by a sitting U.S. president, telling residents in a far-flung Alaska village that their plight should be the world’s wake-up call on global warming.

Climate Change

With 2014 on track to become the warmest year on record and time running short, more than 190 nations began talks on a new worldwide deal to limit greenhouse gas emissions and keep global warming from causing irreversible damage.