I’ve heard it a million times: “The sun is going through a cycle and that cycle is making it warmer!” often combined with statements like, “Mars ice caps are melting just like Earth! It is the Sun that is causing increasing global temperatures!”

I’ve always known these arguments to have absolutely no basis in reality, but now I can actually link to a real scientific study regarding solar cycles. It seems that the Sun’s 7-year cycle only varies solar output up and down by 0.07%.

I wonder what the global warming deniers will use to counter this. Judging from past performances, I think we can expect wild speculation and more localized anecdotes, “It was FREEZING here last year! Global warming can’t exist!”