The glaciers on Alaska’s Juneau Icefield are melting twice as fast as a decade ago, with researchers calling the rate “incredibly worrying.” A study by Newcastle University, published in Nature Communications, shows a dramatic decrease in ice volume since 2010. Historically, from 1770-1979, the icefield lost 0.65-1.01 km³ per year, increasing to 3.08-3.10 km³ per year from 1979-2010. The icefield, the fifth-largest in North America, extends from Juneau to British Columbia.