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A secret draft version of the next report by the United Nation’s influential panel of climate experts, to be given to governments in April, will say a reliable upper limit can no longer be put on how quickly the world will warm.

Professor Ian Lowe, an environmental scientist and president of the Australian Conservation Foundation, said he hoped the report would convince the Australian Government of the seriousness of the issue because it was still listening to the “10 or 12 sceptics of the world.”

In the worst case scenario, the world could warm up to 11 degrees in response to a doubling of carbon dioxide, a 2005 study that harnessed the power of 90,000 computers worldwide found. This is much greater than previous predictions of between 1.5 to 4.5 degrees.

Sydney Morning Herald 1 Mar 2006 – screen copy held by this website