Long before anyone could suggest a reason why, and it would have be scoffed at as pseudoscience on the level of claims of showbiz practitioners of the paranormal. Now we suspect that high spot activity results in deflection of cosmic rays away from the earth, and low spot activity allows the cosmic rays in, either way influencing cloud cover.
That's the mechanism I do not understand. How do the cosmic rays [cosmic wind?] which are produced by sunspots affect cloud cover.....whats the interaction?
I think I understand that the phenomona is that high sunspost activity increases cloud cover, decreasing the earth's radiation back into space and creating a warmer globe.
The reverse is probably true. But I don't know [undrstand!] what the interaction of the cosmic wind is with the magnetosphere that increases [or decreases] cloud cover.
If you could point me to an article that discusses that at a level an engineer without too high a grade point can understand, I would appreciate it!