I think this is somewhat misleading. Antarctica likely is still gaining ice mass overall, for complex reasons, even as the overall stability and health of the i

I think this is somewhat misleading. Antarctica likely is still gaining ice mass overall, for complex reasons, even as the overall stability and health of the ice shelves and sheets weaken. To boil it down to one key point, west antarctica has grounding lines which slope inward, such that the ice melting is already causing a positive feedback loop as melt accelerates the process of warm water working its way under the ice sheet. So while no one is predicting an immediate collapse, there absolutely is reason to think we will and already have been crossing tipping points which will cause irreversible, continuing acceleration in melt. [1] http://news.nationalgeographic.com/2016/04/160412-ice-sheet-collapse-antarctica-sea-level-rise/ http://news.nationalgeographic.com/2016/04/160412-ice-sheet-... [2] https://www.youtube.com/watch?v=YQMtb1Pd07E https://www.youtube.com/watch?v=YQMtb1Pd07E [3] https://en.wikipedia.org/wiki/File:West_Antarctic_Collapse.ogg https://en.wikipedia.org/wiki/File:West_Antarctic_Collapse.o...