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[quote]QUOTE: Originally posted by Hugh Jampton Here's a thought. Global warming is caused by excessive CO2 in the atmosphere (allegedly). Where does this CO2 come from? It's a product of combustion. Take 1 atom of carbon from coal or oil combine it with 2 atoms of oxygen and you get heat which we use to do work and CO2. Where does the oxygen come from? The atmosphere I suppose. So, if the amount of CO2 in the atmosphere is increasing then the amount of oxygen in the atmosphere must be decreasing as there's only a finite amount of oxygen on the planet. So at what point do we all suffocate? [/quote] Except oxygen isn't finite. It is created by plants. Plants take in CO2 and produce O2. More CO2 in the atmosphere means more plants producing more O2.
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