Firstly, the sun has a link to global warming insofar as it provides the enery, and also they have found that the temp change from the top to bottom of the solar cycle is about 0.02 degrees C or something. It is however dwarfed by the forcing of various greenhouse gases and land use changes etc etc. Plus we don't seem to be experiencing solar system warming. It is a conincidence based upon poor observation and the well known human tendency to find patterns where there are none. In the case of some of the planets and moons they are making the warming diagnosis on only a few years data. Go back and look again and see if you can find any of the scientists doing the actual work on the planets saying they are warming due to increased solar outputs. So far I have not seen them say that. Only denialists claim the planets are warming due to solar output.