"A problem with invoking atmospheric carbon dioxide levels as a causal factor in sudden climate changes is that they seems to have varied too slowly, following on the timescale of millennia what often occurred on the timescale of decades- but the resoluti
"Our planet has mostly been much hotter and more humid than we know it to be today, and with far more carbon dioxide (the greenhouse gas) in the atmosphere than exists today. "
Meteorologists recall that thermometers plunged slightly further, to 36 degrees below zero F., during a bitter 1979 cold snap. But no one can remember anytime when it was this cold for this long.
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