There are a zillion
links on Google. Just search for
Solar Output vs Global Warming. I'm certain many of your friends on this site will immediately blow holes in any link that shows any relationship between solar output and global warming. But take a look for the fun of it.
From this graph, we deduce that the increase in the intensity of solar radiation received by Earth coincides with the increase in the global tropospheric temperature. The line of temperatures deduced from the analysis of boreholes, trees’ rings, Oxygen isotopes, etc., also matches with the measurements made by thermometers on ground (from 1900 to 2006). The line that definitively does not match up is the line of CO2 concentration, especially for the Medieval Period, when the temperature varied positively in more than 0.6 C, while the CO2 kept on low levels.