The elimination of Western Antarctic Icesheet can be mobilized with very little sea heat above the present, resulting in increased global levels for more than hundreds of years, which has now appeared in a study. Communication Earth and EnvironmentAuthor of the Impact Research (PIK), the Potsdam Institute for Climate. However, the authors emphasize that immediate steps to reduce the emission can still be avoided by catastrophic consequences.
Scientists at Norwegian Research Center Norris and Northern University in the PI, PIK, held a model for withdrawal of 800,000 years to withdraw 800,000 years, how the Antarctic Ice sheet has responded in the past because it is a “snow” and hot “snow”.
“In the last 800,000 years, there are two stable states in the Antarctic Ice sheet that indicate repeatedly. One, with Western Antarctic Icesheet, is the state in which we are currently present.
Sea temperatures are rising around Antarctica, the largest driver of the change between the two states, as the heat melting heat in Antarctica is supplied by the sea rather than the environment. Once the ice sheet points to the collapsed state, the overturned state of the current era will need several thousand years of temperatures before or less than the industrial conditions.
“Once the tiping begins, it is self -retaliation and it seems that the ocean surface is not very likely to stop before the Moters increase in four meters, and it will be practically non -refundable,” said Chandler.
“It takes tens of thousands of years to grow the ice sheet, but there are only decades to burn the fuel and destabilize it,” said Pick co -author Julius Gurbby. Now we now have only a tight window to work. “
