Last February we posted “The Doomsday Glacier — the Thwaites Glacier Melting From Below,” about the flow of warmer water that is melting the massive West Antarctic glacier from below. Thwaites is referred to as the “Doomsday Glacier” because it’s collapse could eventually lead to the collapse of the entire West Antarctic ice sheet, which contains enough ice to raise the sea level by about 10 feet. Currently, sea levels are rising about 3.5 millimeters a year, and Thwaites alone contributes about 4% or 5% of the total.
The Washington Post reports that a study of the Thwaites and the adjacent Pine Island glacier, published Monday in the Proceedings of the National Academy of Sciences, shows that a naturally occurring buffer system that prevents the glaciers from flowing outward rapidly is breaking down, potentially unleashing far more ice into the sea in coming years. In other words, the collapse of the Doomsday Glacier is accelerating. The collapse may take centuries but could be unstoppable.