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What is your explanation for the uniquely extreme increase of CO2 in the atmosphere, never seen before, and it's correlation to the extreme rise in surface temperature over the last 50-100 years? Coincidence?
CO2 lags temp. The temp increase took a pause from about 20 years ago and CO2 is catching up. Nothing especially mysterious about it, and nothing especially scary about 400 parts per million...it's still a trace gas and we are in geological terms at very low concentrations. In trace concentrations it is easier for large percentage swings to occur. Plants are much happier now.