Sentences with phrase «overestimated aerosol cooling»
If one were to model the temperature rise in the years 1974 - 1999 it would be very easy to overestimate aerosol cooling and so to overestimate the value of CO2 climate sensitivity.
https://judithcurry.com/ Not exact matches
As already said, there are a lot of indications that GHG influences are overestimated in current models (see discussion # 10 and # 11 of http://www.realclimate.org/index.php?p=22), not at least as the influence of sulphate aerosols are not measurable where the largest cooling according to the models should be seen.
The Echam4 model overestimates temperatures with GHGs alone, and gives too much cooling when including aerosols.
Taking the aerosol — or volcanic emanation, it doesn't matter which — as cooling factor, means that CO2 forcing was overestimated during the post 1975, pre-98 period, and overestimated during the post-98 period.
... Schneider became aware that he had overestimated the cooling effect of aerosols, and underestimated the warming effect of CO2 by a factor of about three.
Several studies suggest global dimming aerosol cooling is not overestimated, but underestimated.
Their model found that the unprecedented increase in monsoon activity over the past 30 years is «due possibly in part to» the rise of CO2 in the atmosphere, but they said the result could be an overestimate because the authors didn't consider the impacts of aerosols, which cool the atmosphere.