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  • Global warming 'extremely likely' man-made, says climate paneladd to reading list  

    Posted on September 27, 2013 at 8:25 AM

    Updated Friday, Sep 27 at 9:10 AM

    Scientists can now say with extreme confidence that human activity is the dominant cause of the global warming observed since the 1950s, a new report by an international scientific group said Friday.

    By KARL RITTER / Associated Press
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