co2 makes you fat, page-13

  1. 5,732 Posts.
    dayz71 asked: So which one is it?

    The answer is - both. Homo sapiens evolved around 200,000 years ago.

    We know CO2 is higher than any time in at least the last 800,000 years from ice core records. Other research suggests it could be at least 15 million years since CO2 levels were anything like this high.
 
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