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I'm no climate scientist, but at first blush the idea that warming from CO2 concentration levels off to insignificance at some level appreciably close to where
by lucubratory 2y ago
I'm no climate scientist, but at first blush the idea that warming from CO2 concentration levels off to insignificance at some level appreciably close to where we are doesn't pass the smell test, because of Venus. If CO2 concentration levelled off to insignificance at some point we could foreseeably reach in our children's children's children's lifetime, then I don't see how Venus can be at ~450°C from CO2 concentration. Clearly there's a huge amount of warming left to go from CO2 release.
- throwaway22032 2y agoIf my back of the envelope calculation is correct, at the top of the atmosphere Venus should have about double the solar irradiance of Earth (simple inverse square law). It would be interesting to know what average temperature Earth would be at if we simply moved it inwards.
- mike_hearn 2y agoVenus is much closer to the sun. Think about how much difference the seasons make, and that's just planetary angle.