Some polar tipping points 'already passed', says top climate scientist
By University of Exeter UK
August 2, 2019, 08:04:57 AM
August 2, 2019 – Some tipping points that will cause vast quantities of polar ice to reach the ocean have already been passed, a top climate scientist says. Dr Ricarda Winkelmann, of the Potsdam Institute for Climate Impact Research, also said the loss of “potentially unstable” ice regions in Antarctica alone could raise sea levels by 20 metres.
...She said temperatures are already within the range of the estimated “point of no return” for the Greenland ice sheet.
In Antarctica’s Amundsen Basin – home to enough ice to raise global sea levels by a metre – a tipping point has already been passed, destabilising the ice and increasing the rate glaciers flow into the sea. Dr Winkelmann said this destabilisation has started a process and “most of the ice in this region [around the basin] will follow”.
https://yubanet.com/scitech/some-polar-tipping-points-already-passed-says-top-climate-scientist/
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