by K. Richard, Aug 19, 2022 in NoTricksZone

Early Venus is suggested to have been much colder – and thus habitable – due to higher concentrations of CO2…because CO2 drives cooling in most of the Venus atmosphere (stratosphere, mesosphere, thermosphere).

Scientists have for decades agreed it is “well recognized” that CO2 molecules radiatively cool the atmospheres of planets like Earth, Mars, and Venus (Sharma and Wintersteiner, 1990) in the 15 μm band starting from 12 km above the surface on up.

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