The Register
"Not so much, according to the latest research by German climate scientists. It seems that even in the case of a completely ice-free summer with the sun shining down onto an unprotected Arctic Ocean 24 hours a day (as it does in summer time up there), the heat absorbed by the sea would not be enough to permanently remove the ice cap. It would recover, in fact, within two years: there is no tipping point."
Meanwhile down at the south pole the sea ice around Antarctica is actually increasing. The ice there has been covering another 100,000 square km more sea each decade for the last 30 years, despite the well-publicised losses of ice shelf in the Western Antarctic
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