Since you're on the soap box about CO2... What are you specifically doing to help DaveMatrix? Do you still drive? Do you still use electricity? Do you still breath?
My bet (and no I don't have evidence) is that the population increase over the last few hundred years has almost as much to do with extra greenhouse gases as the petroleum. In addition, we keep cutting down our CO2 absorbers... You know, those green things called plants?
My point, industrial revolution aside, people have been adding CO2 to the air since there were people...
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