In regards to Moray's comments dismissing the Sun's effects...
From: Svensmark: “global warming stopped and a cooling is beginning” – “enjoy global warming while it lasts” at
http://wattsupwiththat.com/2009/09/10/svensmark-global-warming-stopped-and-a-cooling-is-beginning-enjoy-global-warming-while-it-lasts/
As the current flat or even cooling global temperatures seem to correspond with the the solar minimum, there is correlation here. NOTE: Correlation is NOT causation, though Moray explicitly insists it is when comparing CO2 and global temp data from the ice cores. I will not dispute that greenhouse gases likely have some effect on temp. What is in dispute is how much compared with other negative and positive forcing functions. I have also read that CO2's impact on how much heat will be trapped in the atmosphere is not linear with increasing concentrations. Meaning that as concentration increases, each percent of increase has less and less affect. This may also help explain why temperatures have stabilized even though CO2 concentrations have continued to rise (also bringing doubt to the causation argument). At some point, the atmosphere is holding all the heat it can, and increasing greenhouse gas concentrations have not further impact.
As for Svensmark..Though his postulation is quite interesting and deserves more study....there isn't much of a correlation. As well, if it were a correlative effect, you would see the "peaks meet the valleys or the valleys meet the peaks" between cosmic ray levels and temperature anomalies. That just doesn't happen.. When cosmic rays go up... temp anomalies go up. When cosmic rays go down, temp anomalies go up.
I agree with you that CO2 has less of a magnifying effect as it increases in concentration. [CO
2]
The problem is that CO2 forces the climate just enough to allow CH4 to bubble out of hydrate form. CH4 is a massive player in warming trends, much more than CO2. I mean, just the seasonal winter-summer cycle make Ch
4 fluctuate.... it's right at the point.
Solar activity is the primary driver of climate, as it obviously provides the energy into the system.
If you compare the solar activity chart to the temperature trend line, you'll see the high output years show up quite well. If the trend line wasn't moving up, the whole thing would be tied together. 1980... solar max... and a temp spike to go along. 1990...solar max and a temp spike to go along. If something keeps that energy.... (like a low lying gas)......the overall trend line goes up, without solar inference.
Output was well below the mean solar average for the past 3 years. We'll see what happens in the next 5 or so. ( When the furnace gets stoked again.) I feel we're in for a bad decade.
It is good to see that you aren't dismissing the actual existence of a change, though.