A new international report finds rapidly increasing climate change could raise global sea levels up to five-feet, three-inches by 2100. Temperatures in the Arctic are the warmest ever recorded, putting the region’s ice caps and glaciers, as well as the Greenland Ice Sheet, at risk of melting. Such a thaw would threaten coasts from Bangladesh to Florida, low-lying Pacific islands, and cities from London to Shanghai. The report from the Oslo-based Arctic Monitoring and Assessment Program draws on the work of hundreds of experts. It also warns of a significantly higher sea level rise than previously anticipated. The last major report issued in 2007 predicted sea levels would rise between 18 and 59 centimeters by 2100 (roughly equivalent to between seven and 23 inches).