The earth takes in a flood of solar energy on dayside. To keep the world’s temperature fairly steady the world has to radiate as much heat from the night side as the Sun pours in on the dayside. Greenhouse gases in the atmosphere absorb heat radiated from the sun warmed ground, rather than allowing the heat to radiate into outer space.
CO2 is a green house gas. So is water vapor. There is a lot of water vapor in the air; you can see it with the naked eye in the form of clouds. The amount of water vapor varies with temperature but it averages around 4000 parts per million. That is ten times the current amount of CO2 which is 400 parts per million. The part the Greenies natter about is the rise from 300 parts per million to 400 parts per million over the time since the Industrial Revolution. That is an increase of 100 parts per million or 2.5% of the amount of water vapor. Real people (not Greenies) don’t believe that a 2.5% increase in greenhouse gases makes any difference to the temperature of the world.
As far as real people are concerned, the Greenie push to stop using oil and natural gas is just a political scheme to let them control a large part of the US economy and squeeze money out of that control. The Greenies love $5 a gallon gasoline. And at this point it looks like the Greenies are controlling Biden.
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