[cbacba]

Originally Posted by Skeptic

Going back to solar influence.

Since 1976, greenhouse gas increase has correlated better with temperature increase than anything else. However, before that time, solar activity, as shown by the number and activity of sunspots, correlated better than GHGs.

http://web.dmi.dk/fsweb/solarterrest.../welcome.shtml

There are problems when trying to translate solar activity into calculated solar forcings. We still do not know exactly how sunspot activity actually drives warming or cooling. Theories exist, but tend to be controversial. Thus, organisations such as the IPCC who offer calculated solar forcings need to mention that such are extremely uncertain.

I mention this because the IPCC calculated solar forcings do not seem to correlate as well. However, sunspot activity correlation is extremely good, as shown in my reference.

Oh dear! There's a giant hole in warming trends between 1940 and 1975 where it got colder. And all that right in the middle as mankind continued belching co2 at record levels. If co2 is a substantial ghg - then how is that possible?