Climate science is in its infancy, and just about every proposition is controversial. The idea that climate science is in any non-trivial sense settled is ridiculous.
One area where this is obvious is clouds. Clouds play a huge role in the Earth’s climate, but the dynamics surrounding the various types of clouds are simply not understood. When climate scientists developed the models on which all global warming alarmism is based, they knew that the role they assigned to CO2 as the principal driver of the Earth’s temperature could not be sustained by a review of the Earth’s climate history. Therefore, they used clouds as a plug factor, programming their models to believe that the human influence on clouds significantly moderates the otherwise extreme influence of added CO2 on the climate. This is one of many ways in which climate “science” is not scientific.
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