But that-
ONCE AND FOR ALL!
this post was submitted on 26 Jun 2023
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I suppose but if you are reflecting it into greenhouse gases then the air temperatures go up instead.
Not really. Greenhouse gases don't absorb all wavelengths of light. Generally they only absorb parts of the IR spectrum. The 50-70% of light reflected isn't absorbed by greenhouse gasses because it's not in a wavelength that it can absorb, it mostly radiates back into space.
Ah, and much of that energy would be absorbed on the way in. So the additional energy absorbed on the way out depends on how the surface material changes the reflected light or later radiates the absorbed energy.