progressiveslol
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Setanta wrote on Sep 17 th, 2014 at 8:29pm: longweekend58 wrote on Sep 17 th, 2014 at 8:22pm: Setanta wrote on Sep 17 th, 2014 at 8:05pm: longweekend58 wrote on Sep 17 th, 2014 at 7:11pm: Setanta wrote on Sep 17 th, 2014 at 6:06pm: the whole venus argument is new low even for climate hysterics. mars atmosphere is 95% CO2 so the point remains valid... that is if anything can be valid by such a truly ludicrous argument You can argue the Venus thing is a new low, but be factual. No, it's not valid. The atmosphere of Mars: Quote:The atmosphere of Mars is less than 1% of Earth’s, so it does not protect the planet from the Sun’s radiation nor does it do much to retain heat at the surface. Where as Venus is: Quote:Three words: runaway greenhouse effect. In many ways, Venus is a virtual twin of Earth. It has a similar size, mass and gravity as well as internal composition. But the one big difference is that Venus has a much thicker atmosphere. If you could stand on the surface of Venus, you would experience 93 times the atmospheric pressure we experience here on Earth; you’d have to dive down 1 km beneath the surface of the ocean to experience that kind of pressure. Furthermore, that atmosphere is made up almost entirely of carbon dioxide. See, there is a big difference and the reason Venus is hot enough to melt lead on it's surface is because of it's atmosphere, not 50 million miles. the argument is sto stupid at the best of times. Venus also has a pressure of 92 atmospheres and thick impenetrable cloud cover all of which makes it a pressure cooker. the CO2 presence is relatively unimportant. but lets not forget.... it is still a stunningly stupid argument in support of CO2-based warming, perhaps the worst Ive heard yet. It is the CO2 that makes it hot, hotter than Mercury, not the atmospheric pressure, that would squash you not cook you. It's not a silly argument at all, it shows what CO2 does in a spectacular way, as the link above says, runaway greenhouse effect. You will not get any scientist saying CO2 is not the reason it is so hot on Venus. No, the pressure makes the molecules closer together, making for a better blanket, be it any gas that can reradiate. Molecular density. Earths atmospheric pressure and the temperature signatures are virtually the same as Venus' at 1000 millibars, even though the earth only has less than 1% of CO2 and Venus has upwards of 100%
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