Variations in atmospheric carbon dioxide do not cause global temperature variations; the opposite is true. Today's carbon dioxide level is lower than ever recorded in the geological history of our planet, and its rise during the last century is due to natural causes only.
Climate Church Takes Another Blow Climate Church Takes Another Blow
Michael Mann was "encouraged" by the IPCC to file a law suit against a Canadian climatologist. The IPCC was too optimistic and Mann had to commit contempt of court.