There was a letter by Nobel Laureates that suggested the probability of global warming is in the same class as evolution.
Given the probability I have in my mind for evolution, that's off more orders of magnitude from the IPCC number than the positions of global warming skeptics.
Do you know of any nonpartisan studies of this?
Who would have to fund a study like this to be nonparitsan?
My impression is that it's not at all symmetrical, but of course I might think that even if it were
How do you make that judgment? Did you read the IPCC report to have the ground truth for various claims? The great thing in the report is that it has probability categories for it's various claims.
In reading most of the claims that the IPCC report makes about global warming are a lot less than 99% certain. Media reports generally have a hard time reasoning about claims with probability 80% or 90%.
a letter [...] that suggested the probability of global warming is in the same class as evolution [...] more orders of magnitude from the IPCC number than the positions of global warming skeptics.
I can only guess what letter you have in mind; perhaps this one? (Some of its signatories are Nobel laureates; most aren't.) I'll assume that's the one; let me know if I'm wrong.
It doesn't mention probability at all. The way in which it suggests global warming is in the same class as evolution is this:
...But when some conclusions have been thoroughly and deeply
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