[wendy1946]

What does that say about Carl Sagan’s “Super Greenhouse(TM)” theory which supposedly explains the 900F surface temperatures on Venus??

[SunkenCiv]

Thanks wendy1946. :') Sagan's borrowed/adapted greenhouse effect BS, and Sagan himself, is the foundation of the global warming demagoguery. The scumbag also said there would be massive crop failures in India because of Saddam's hundreds of oil well fires set as the Iraqi army fled Kuwait.

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[SunkenCiv]

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	Gods Graves Glyphs	Thanks wendy1946 for the ping. I'm pinging it. This experiment is from 1909, so it qualifies as a history topic, and, well, don't hit me. To all -- please ping me to other topics which are appropriate for the GGG list. GGG managers are SunkenCiv, StayAt HomeMother, and Ernest_at_the_Beach
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[KoRn]

"What does that say about Carl Sagan’s “Super Greenhouse(TM)” theory which supposedly explains the 900F surface temperatures on Venus??"

Could it be that Venus is closer to the Sun? Could there be other factors on Venus in addition to CO2 levels that would make the planet hotter? When dealing with other planets, there are so many unknowns. Unless someone actually goes to the other planet, such things will be no more than a theory.

[PapaBear3625]

What does that say about Carl Sagan’s “Super Greenhouse(TM)” theory which supposedly explains the 900F surface temperatures on Venus??

Venus' atmosphere is 97% CO2 at a pressure of 93 times earth surface pressure. Earth is 0.038% CO2. Big difference.

[qam1]

Venus is hot because of pressure not CO2

In fact if you go up in Venus' atmosphere to where the atmospheric pressure is equal to earth, even though CO2 is still 95%+ the temperature range is similar to earth ~32-120°F. Actually, because of this there's been talk that Venus would be the best planet to colonize 1st in floating cities. See http://www.universetoday.com/2008/07/16/colonizing-venus-with-floating-cities/

Side note: I don't have time to do the math but Mars has something like 10x the amount by mass/# of molecues of CO2 in it's atmosphere than Earth does, yet it is much colder. The reason is because the pressure is much lower