CO₂ in the air makes no difference
A summary from a phenomenal talk given by William Happer, which decidedly ends the carbonhysteric myth that carbon dioxide levels matter.
The message I want you to understand, which practically no one really understands, is that doubling CO2 makes almost no difference. Doubling would replace the black curve by the red curve. On the basis of this, we are supposed to give up our liberties. We are supposed to give up the gasoline engines of our automobiles. We are supposed to accept dictatorial power by Bernie Sanders and Ocasio-Cortez, because of the difference between the red and the black curve. Do not let anyone convince you that that is a good bargain. It is a terrible bargain. The doubling actually does make a little difference. It decreases the radiation to space by about three watts per square meters. In comparison, the total radiation to space is about 300 watts per square meter. So, it is a one percent effect—it is actually a little less than that, because that is with no clouds. Clouds make everything even less threatening.