Neal,
I have read this before and there does seem to be a close relationship between sun spots and temps(closer than CO2). Not a very popular oppinion in todays world and I am surprised he is still teaching. I think this is a good thing with all the histeria out there with CO2 though(right or wrong) because we have ruined far to much of our world. As he stated, only time will tell.
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Never leave a few fish for a lot of fish son.....you just might not find a lot of fish-----Theo