This week at a speech at the Copenhagen climate talks, Gore said crumbling ice sheets, disappearing glaciers and the shrinking Arctic ice cap were feeding global warming and fuelling rising sea levels.
He cited new research from climatologist Dr Wieslaw Maslowski that showed the Arctic ice cap may have shrunk to record low-levels last year.
'Some of the models suggest to Dr. Maslowski that there is a 75 per cent chance that the entire polar ice cap during some summer months could be completely ice free within five to seven years,' Gore said.
But the American scientist rejected the claim.
'It’s unclear to me how this figure was arrived at,' Dr Maslowski said. 'I would never try to estimate likelihood at anything as exact as this.'
Dr Maslowki, who works at the U.S. Naval Postgraduate School in California, said that his latest results gave a six-year projection for the melting of 80 per cent of the ice, but said he expected some ice to remain beyond 2020.
'
I was very explicit that we were talking about near-ice-free conditions and not completely ice-free conditions in the northern ocean,' he said.
'I would never try to estimate likelihood at anything as exact as this. It’s unclear to me how this figure was arrived at, based on the information I provided to Al Gore’s office.'
Mr Gore’s office later admitted that the figure of 75 per cent had been used by Dr Maslowksi as a 'ballpark figure' several years ago during a private conversation.
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