Quote:
Originally Posted by EonBlue
That's not really a relevant argument to make. Everything can be a poison at high enough concentrations.
The atmosphere is nowhere near toxic levels of CO2 and will never reach toxic levels because of human activity.
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Your certainty would be better if you hadn't posted this one post above -
"If a man will begin with certainties, he shall end in doubts; but if he will be content to begin with doubts he shall end in certainties. - Sir Francis Bacon"