Billion tons CO2 = how many °C?
Richard Treadgold | November 25, 2011I’m sick of all these claims that we should, or even can, limit the world’s warming to 2 °C.
Here’s a challenge: name a scientist prepared to make this assertion and describe the evidence for it.
It appears to be no more “settled science” than an unsubstantiated urban myth. At the very least, there’s so much uncertainty about the climate sensitivity to warming that we don’t know the effect on temperature of, say, 5 billion tonnes of CO2.
Ignoring for a moment the obvious question of what’s so wrong with two degrees, how do “scientists” reason their way from 2 degrees of warming to (as it says below) 44 billion tons of CO2 in 2020? Read more… »
















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