I read this article a few months ago.  I hate to talk about Global Warming because it incites a lot of emotion but, I thought this was interesting because it comes from CERN, a group of physicists that I have a lot of respect for (climatologists, on the other hand, seem more like astrologers divining the universe through observing some kind of mystical Ptolemaic cosmos) .  Warning, this is an article about CERN’s findings, it is not published directly by CERN (though it links to CERN’s articles).