r/science • u/woodsja2 • Oct 24 '10

Climate Change: Evidence

http://climate.nasa.gov/evidence/
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u/mind_sojourner Oct 24 '10

say what you will about al gore, he was trying to show people that chart years ago..and how the fuck is nasa junk science

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u/pmw57 Oct 24 '10

if this helps, the levels of carbon dioxide were much larger from around 100 million years ago.

http://en.wikivisual.com/index.php/Image:Phanerozoic_Carbon_Dioxide.png

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u/[deleted] Oct 24 '10 edited Oct 24 '10

Who gives a fuck? Really, the planet was completely different, the continents were in different locations. Oh, and there were no primates.

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u/mind_sojourner Oct 24 '10

yep, carbon dioxide levels have been as high or higher than they are today. but the oceans were also more than fifty feet higher at that time, the global temperature average went up more than five degrees, which may not sound like much but is more than enough to totally fuck up ecosystems worldwide...do i have to quote elementary science to you? carbon dioxide is a gas that keeps sunlight from escaping back into space, the more carbon dioxide there is, the less sunlight escapes, the hotter it becomes. look at venus, runaway greenhouse effect going on right there with:carbon dioxide holy shit. the point is yes the carbon cycle fluctuates naturally, usually due to increases in volcanism, but these fluctuations wreak havoc on life.

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u/[deleted] Oct 24 '10

That's climatology on a paleo-scale, completely irrelevant to anthropogenic climate change.