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Re: co2 and World Population growth

No dice - all the carbon in us comes from the pool open to the atmosphere - we are just a carbon sink, locking up a few kg for a few score years. In problems like this, simplify the issue - you are a box full of C. what C you emit by breathing must come from somewhere - food, which comes from CO2 + hv + H2O. Net (at steady state) change on atmosphere = 0. Not quite steady state (more people) -> 5*10^9 people *4kgC/person (ish) = 2*10^10kg = 2Mton C locked up more than before.