A new U.N. report on climate change is expected to blame man-made greenhouse gases more than ever for global warming, but since 1998, air temperature has not continued to rise with greenhouse gases. ... more 
A new U.N. report on climate change is expected to blame man-made greenhouse gases more than ever for global warming, but since 1998, air temperature has not continued to rise with greenhouse gases. Mark Phillips reports. less 
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Thu, Sep 26, 2013 10:10 PM EDT