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Original post by Momoko_Fan
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http://www.skepticalscience.com/
The fact that this kind of site even exists implies to me that global warming is currently in a hot debate with no conclusive facts.
People keep mentioning that the oil industry has some kind of agenda, there are a lot more websites, news stations, books, tv shows, and organizations that support global warming so how is it that the oil industry has the agenda?
That doesnt really make sense...
The fact that a site exists to explain something simply means that there are a lot of people who dont yet understand that subject, not that there "are no conclusive facts".
eg: The fact that Gamedev.net exists doesnt mean that knowledgeable people strongly debate the existence of computer games. Its here to help people understand more about them.
As for CO2 being only a small percentage - to say "I cant imagine it making a difference" is the classic argument from ignorance. Just because something cant be personally imagined doesn't mean its not true. Particularly when youre only selecting broad figures without understanding the relationship between them - as Zalhman's link points out, water vapour is a significant positive feedback mechanism, so it will actually
amplify the "tiny change" that the CO2 makes. "Natural" water vapour is created as a direct consequence of even a tiny temperature rise due to CO2, which in turn creates more "natural" water vapour, and so forth.
Or as a counter example, I could pick a few other numbers in the same vein to make the situation seem critically dire. For example: The earth receives 174 petawatts of energy from solar radiation. Thats 174,000,000,000,000,000 watts. 0.28% of that is 487,200,000,000,000 watts. More than 30 times greater than total worldwide human power consumption. Does that still sound like a "tiny change" that couldnt affect the temperature?
But honestly, neither my "huge" figures nor your "tiny" figures are representative of what actually occurs. What
is representative of what happens?... The climate models created by knowledgeable climate scientists.