Largely true but irrelevant as situation quite different now OpposingArgument1 #14792 Largely true: but irrelevant as situation today's quite different. The extra CO2 in the atmosphere—35% increase over pre-industrial levels—is from human emissions. Levels are higher than have been seen in 650,000 years of ice-core records, and are possibly higher than any time since 3m years ago. |
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