Nature World: Previous predictions of Greenland ice loss may have been greatly underestimated, as new research shows the region's "supraglacial" lakes could trigger faster ice melt in the future. Supraglacial lakes are bodies of water that form on the ice sheet surface from melted snow and ice. According to the new study, these lakes will migrate farther inland over the next 50 years, potentially causing drastic changes in Greenland's ice sheet flow and contributing to rising sea levels. "When you pour pancake...