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Because atmospheric water vapor is present in quantities orders of magnitude greater, and has a broader and deeper absorption spectrum than any other “greenhouse gas,”so it is the only “greenhouse” gas that matters?
Because the climate of the earth is primarily determined by fluctuations in solar irradiance, with geological activity of the earth a distant second. Neither of which humans have any control over.
Human beings make up 0.0625% of the mass of all life on earth, and 5.83 x 10^-12% of the earth’s mass.
Water vapor makes up 95% of the earth’s “greenhouse gases.” Carbon dioxide makes up 3.618%, and all other gases make up 1.38%.
All human activity contributes 0.28% to these “greenhouse gases.”
Anyone who believes in man-made climate change has zero intellectual integrity.
Scientist struggle to understand they are wrong.