US to review global warming health threat

Barack Obama reviewing suggestion that global warming is threat to public health – bringing possible end to George Bush's 'era of denial'The White House is reviewing a suggestion by the US environmental agency that global warming is a threat to public health and welfare.Such a declaration by the Environmental Protection Agency would be the first step to regulating carbon dioxide and other greenhouse gases under the US Clean Air Act and could have broad economic and environmental ramifications.The Supreme Court two years ago directed the EPA to decide whether greenhouse gases, especially carbon dioxide from burning fossil fuels, pose a threat to public health and welfare because they are warming the Earth. If such a finding is made, these emissions should be regulated under the Clean Air Act, the court said."I think this is just the step in that process," said White House press secretary Robert Gibbs, noting the Supreme...

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