Michael Mann: Climate-Change Deniers Must Stop Distorting the Evidenc

Michael Mann: Climate-Change Deniers Must Stop Distorting the Evidence (Op-Ed)
LiveScience.com
Green dots show the 30-year average of the new PAGES 2k reconstruction. The red curve shows the global mean temperature, according HadCRUT4 data from 1850 onward. In blue is the original hockey stick of Mann, Bradley and Hughes (1999), with its
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