The Solution.
The thing is, it isn't a 'doh'.
Increased solar radiance, the 'doh'--heat comes from the sun, accompanied with a dope-slap to the forehead--aspect of increasing global temperatures is very small. The solar magnetism as a cosmic-ray shield effect is most of the influence of the sun on temperature variation (not obvious--the science to confirm it was only done last year). Yes I know, most of the influence of the sun on climate in toto is due to heat and light, but that's not what global warming claims are about: they are about changes in average temperature.