Its all the Sun's Fault!

Anyone who has had a discussion with people who deny that humans are causing climate change has surely heard this one before, even if the person doesn't believe the climate is actually changing they will find a way to work in a, "Well even if it is it is all the sun's fault anyway!" There is no doubt as a geologist that the sun is the largest driving force behind climate and this can be traced back through geologic time. The question then becomes well if in the past the sun caused climate change, although not always just the sun itself sometime with the help of how the earth was rotating the sun (we can discuss this at a later date if you want), is the sun doing stuff now that could be causing climate change? The simple answer is NO but I will let Greenman3610 take it from here.