Summary: The House Science committee heard from three climate scientists. The testimony of the activist, Michael Mann, destroyed the case for strong public policy action to fight climate change. He deserves attention.
On March 29 the House Science, Space, and Technology Committee held a hearing on “Climate Science: Assumptions, Policy Implications, and the Scientific Method“. The star witness, in terms of public profile, was Michael Mann — Professor of Atmospheric Science and Director of the Earth System Science Center (ESSC) at Pennsylvania State. Mann gave a remarkable demonstration of why the 29 year-long climate change campaign has produced such small results. He opens strongly and closes with even more strongly. But his own evidence undercuts his claims.
(1) A consensus about current adverse impacts of climate change?
Mann opens with this claim, one that has been often said during the past…
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