'We're at the Brink': Researchers Warn Greenland Ice Sheet May Have Already Passed Tipping Point

Researchers in Germany and Norway said Tuesday that a major portion of Greenland's ice sheet is "at the brink" of reaching a frightening "tipping point"—the latest sign that global heating is causing irreversible damage to the world's glaciers and that policymakers must halt fossil fuel emissions without further delay. According to new research published in the Proceedings of the National Academy of Sciences, the melting of the central-western Greenland ice sheet has surged over the last 140 years. "The current and near-future mass loss will be largely irreversible. That's why it is high time we rapidly and substantially reduce greenhouse gas emissions from burning fossil fuels and re-stabilize the ice sheet and our climate."