Let he (or she) whose Country is without sin cast the first turd!
Kyoto, which I suspect was the root of this thread, is all but unworkable anyway, for a start it excludes China and India. OK, they don't all drive round in 4 litre SUVs, but all those sacred cow farts and coal fires probably make up for that.
One good volcanic eruption could undo all our efforts anyway.
No harm in trying, though.
"Wish I was in the land of Martin, where good times are always startin'"
"No one likes us, don't know why, we may not be perfect, but heaven knows we try!" (Randy Newman - "Political Science")