muf.
Yes, just like SoM suggested way back! However, the most abundant aerosol, water condensate, may well override other aerosols if Dr. Roy Spencer’s paper survives.
http://www.drroyspencer.com/2010/04/a-response-to-kevin-trenberth/
As you can see, he describes how cloud tops reflect the SW insolation (doesn’t do much for UV and blue vis though) and reduces the warming energy effect of insolation, but I think he should’ve gone to greater depth with cloud evolution (like how energy not reflected adds to produce a ‘thunderhead’ when enough water is available). OK. So perhaps the ‘thunderhead’ explanation should be the responsibility of Dr. Lindzen to describe?
Seriously, if Roy’s observations stand, the Earth’s sensitivity to a changing climate is really very small. This means that the IPCC’s estimation is way out!
Is this an ‘empirical falsification’, or what?
Best regards, Ray Dart (AKA, suricat).