Greenland's ice sheet may have hit a tipping point that sets it on an irreversible path to completely disappearing.
Snowfall that normally replenishes Greenland's glaciers each year can no longer keep up with the pace of ice melt, according to researchers at Ohio State University. That means that the Greenland ice sheet — the world's second-largest ice body — would continue to lose ice even if global temperatures stop rising.
Image: Ice melted during a heat wave in Kangerlussuaq, Greenland on August 1, 2019. Caspar Haarloev from "Into the Ice" documentary via Reuters
