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darwin says:
I think theyre wrong. Recently scientists have uncovered fossilized SUVs and coal fired power plants. The evidence is mounting that Global Warming controls everything.
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jim2 says:
You can see a CO2 spike ~ 66 million years ago in this stomata study. This study shows CO2 much higher in the past than now.
http://www.sonoma.edu/users/c/crocker/516-2011/300myr%20profile.pdf