I appreciate the difficulty involved in estimating a parameter like the climate sensitivity to atmospheric carbon dioxide from limited observational (i.e., non-experimental) data.
What I object to is the reductio ad absurdum of taking a model to a regime far from where it is meant to be applied, saying that it does weird things there, and using that as a reason not to trust it in the regime where it is meant to be used.
a model to a regime far from where it is meant to be applied
Where it is meant to be applied? For Venus, where there is 600,000 times more CO2 than here, it is regularly applied by climatologists. This is 19 or so “doublings”.
Why shouldn’t we half it 20 times and expect the same law to be valid?
Or at least—in which interval it is valid and why? Where one can see the hard science behind. Not only quoted that’s so—but actually. Where are the Arrhenius claim’s falsifications? Supporting experiments?
I appreciate the difficulty involved in estimating a parameter like the climate sensitivity to atmospheric carbon dioxide from limited observational (i.e., non-experimental) data.
What I object to is the reductio ad absurdum of taking a model to a regime far from where it is meant to be applied, saying that it does weird things there, and using that as a reason not to trust it in the regime where it is meant to be used.
Where it is meant to be applied? For Venus, where there is 600,000 times more CO2 than here, it is regularly applied by climatologists. This is 19 or so “doublings”.
Why shouldn’t we half it 20 times and expect the same law to be valid?
Or at least—in which interval it is valid and why? Where one can see the hard science behind. Not only quoted that’s so—but actually. Where are the Arrhenius claim’s falsifications? Supporting experiments?