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re: People who don't vaccinate their children are...
Posted on 4/16/15 at 11:51 am to Duke
Posted on 4/16/15 at 11:51 am to Duke
quote:
He doesn't. Of course, people who claim it is don't know either. We know the world has been getting warmer and we know the concentration of CO2 in the atmosphere has increased with it. Proving the correlation is the causation is difficult in such a complex and dynamic system as the atmosphere.
We also know the world was previously warmer than it is now, with lower CO2 levels, and vice versa.
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Posted on 4/16/15 at 11:59 am to cokebottleag
quote:
We also know the world was previously warmer than it is now, with lower CO2 levels, and vice versa.
CO2 isn't the only thing that can cause warming. Hence the difficulty in saying for certainty that the increase of CO2 concentration is benign or causing a global catastrophe.
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