I can't beleive that some scientest,men or women, don't bring up sun spot activity when looking at the earths weather changes. I remember reading that the sun has had one of the largest and longest sun spot activity periods stop two years ago and that activity had been (was) causing the increase in global warming. I also heard that one of the goverment agency, NOA, has been monitoring the oceans temperature from sensors and they have been dropping(cooling) since the mid 1990s I'm sure there is contradictory information denying these as well as all non man made reasons causing global climate change The Chinese are getting wealthy and there growing more hogs,chickens and beef to eat, its all that animal flatulence (as all ready pinted out)that is causing all the green house gasses See you guys in Las Vegas at the MATS race, hopefully