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Politics : Formerly About Advanced Micro Devices

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To: Tenchusatsu who wrote (1569635)11/3/2025 12:48:19 PM
From: combjelly   of 1570744
 
Yes, the proximity is a factor. Venus is at the inner edge of the habitable zone and Mars is at the outer edge. Either could have liquid water at the surface if their atmospheres were right. Mars did at one time and Venus might have, but things have changed.

The last time our atmosphere was at 420 ppm was during the Miocene. Now what was different then was CO2 was declining due to a general decrease in vulcanism. But can be a good model.

agupubs.onlinelibrary.wiley.com
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