Climate Models Dec 13, 2015 18:15:04 GMT
Post by duwayne on Dec 13, 2015 18:15:04 GMT
From the link:
"Kyoji Kimoto shows why the basic global warming hypothesis may be wrong. He shows doubling carbon dioxide in the absence of feedbacks will warm the Earth by only 0.14 degrees C."
This never was the claim. The AGW hypothesis was that increasing CO2 increased temperatures slightly that led to water vapor increasing in the atmosphere that led to more warming that led to water vaoor increasing in the atmosphere.... etc.. And the climate then enters an iterative feedback cycle leading to the oceans boiling.
The AGW hypothesis depends on positive feedback. So the paper is arguing against a straw man.
(We know that the AGW hypothesis also glosses over the fact that Earth has had thousands of years with higher levels of CO2 and no runaway positive feedback occurred. So the hypothesis does not even have face validity. )
Nautonnier, I may be misreading this, but I don't think he is questioning the "feedback". I think he questions the Planck response(climate sensitivity with zero feedback) which then must be multiplied by the feedback ratio to get the total climate sensitivity.