Drilling triggers rethink on ice

Brisbane Times: THE first complete ice cores drilled from the Greenland ice sheet that extend back more than 120,000 years to the Earth`s last great warming period reveal the ice sheet experienced surface temperatures about 8 degrees hotter than today and was 400 metres thinner. An international team of scientists have used a 2549-metre long ice core from north Greenland to reconstruct surface temperatures and ice sheet thickness back to the previous interglacial period, when global temperatures averaged about......

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