Jim D
Surely there is a whole dimension not considered here. To my mind the bigger argument is how to characterise the effect of, say, 1 or 2 degrees warming.
Some people (Hansen for instance) want to say that 2 degrees will mean <i>ineffable disaster</i>. I'm at the opposite end of the spectrum because I believe 2 degrees will have very little significance at all. Surely this disagreement is much wider than the realistic disagreements about climate sensitivity or feedbacks or whatever. It is the <b>real</b> disagreement and actually has very little to do with climate science (or any kind of science)?
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