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HumorNature

Chlorophull.


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2 comments
  1. Michael R.

    James
    Thanks for the note (Venus has been added)…Yes, Venus’ atmosphere at present seems more definitively the result of a GH effect, and the results by Laconte et al reference the probable greenhouse conditions on Venus.
    However, Mars did indeed lose its atmosphere, somehow, and Mars shows evidence of having liquid (surface) water in its ancient past. So, given the current coldness of Mars, some have posited a greenhouse-like effect as (at least partly) responsible for this liquid water — and effect triggered by a massive bombardment of “cosmic impacts” (such as asteroids or meteorites) which drove the temperatures way up. See: http://www.astrobio.net/exclusive/4775/did-ancient-mars-have-a-runaway-greenhouse [link embedded in text of article]

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