The Greenland Ice Sheet is cracking open more rapidly as it responds to climate change. The warning comes in a new large-scale study of crevasses on the world’s second largest body of ice. The Greenland Ice Sheet is cracking open more rapidly as it responds to climate change. The warning comes in a new large-scale study of crevasses on the world’s second largest body of ice. Earth Sciences Environment Phys.org – latest science and technology news stories