<<返回上一页

Weakening ice sheet could protect itself from the sea

发布时间:2019-03-07 03:13:01来源:未知点击:

THE vast ice sheets of the Antarctic may be more stable than we thought, because a key piece of physics has been overlooked. Glaciologists have long worried that the West Antarctic ice sheet will collapse over the next few centuries, raising sea levels dramatically. At present the ice sheet is grounded on underwater islands, which insulate some of the ice from the melting effect of the seawater upon which the rest of the sheet floats. But the sheet has started to melt because of climate change,