Dude, its called the 'precautionary principle'. We do something now, just in case the nerdy scientist blokes are right...cause if we dont the sh1t hits the fan in a big way. This logic makes the little effort to do small things now worthwhile! Stuff all the BS about keeping the place nice for our kids, its just so little effort to do something...you may as well.....or not, up to you.
Annual temperatures are affected by global warming, last summer (06-07) was also cold, but was one of the hottest years on record (6th since recording began in 1908) cause the winter was abnormally warm.
haha, sorry to be the nerd!!