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Nature 392, 639 (16 April 1998) | doi:10.1038/33487

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Petition strengthens hand of global warming sceptics

Colin Macilwain

About 15,000 US science graduates, including 6,000 PhDs, have signed a petition that rejects the Kyoto agreement on global warming and argues that increases in carbon dioxide levels benefit Earth, according to the petition's organizers.The petition is likely to be released by the George Marshall Institute in Washington DC in the near future, and opponents of the Kyoto agreement are expected to use it to back up their arguments about a lack of scientific consensus on the issue.