Published on February 2nd, 2013 | by Joe Mohr



February 2nd, 2013 by

Joe’s cartoon archive, twitter ramblings and StumbleUpon page

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About the Author

is an Environmental/Political cartoonist for Planetsave, Elephant Journal, Wend Magazine, Twilight Earth, Ecopolitology, EcoSnobberySucks, and more... Joe also does a kids enviro-toon called Hank D and the Bee on EcoChildsPlay and NaturalPapa. Joe lives in University City, Missouri and spends his free time with his beautiful wife, enthusiastic daughter, and curious toddler of the same name. He also enjoys writing, drawing, painting, walking, biking, skateboarding, gardening, reading, listening to music, playing sports, and watching plays (especially the plays his wife's site-specific theatre company, Onsite Theatre puts on).   Visit Joe's online cartoon gallery at

  • Michael R.

    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: [link embedded in text of article]

  • facefault

    There’s an error above. Mars didn’t have a runaway greenhouse effect; you’re thinking Venus.

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