no no no, it's cows, cows are causing the increase of 1/2 a degree in the world's temperature.....
The UN says so:http://www.un.org/apps/news/story.asp?NewsID=20772&Cr=global&Cr1=warming
Oh yeah, I forgot. That's the double whammy: environmentalists and anti-meat-itarians
I was thinking maybe it was the polar bears and moose and elk perhaps up in the artic region causing the damage,