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Originally posted by ckitch
reply to post by ckitch
...And with warmer saline filled seas, the Atlantic Conveyor must presumably be affected at an ever increasing rate, thus cooling the temperatures in Europe etc.!
Greenland's ice has secret weapon against melting
Greenland's vast ice sheets are proving surprisingly resilient. That means the glaciers will melt only slowly as the climate warms, provided it does so steadily. However, wild changes in the weather could make them melt much faster.
Greenland's ice sheets are shrinking already as the climate warms, and some glaciologists fear that they could accelerate their own destruction. If they all melted, they would raise global sea levels by 6.5 metres – though even in a world 8 °C warmer than now this might take 1000 years.
The feared self-destruct device is water. As a glacier melts, water runs down to its base. In theory, this lubrication should accelerate the glacier's slide downhill and melt it sooner.
But this positive feedback is "limited", says Christian Schoof of the University of British Columbia in Vancouver, Canada, who has built a new model of glaciers that simulates how they respond to meltwater. He says glaciers can get rid of excess water because of the way their internal structure changes.