As far as I understand he has not pulled us out of Kyoto just said that there will not be a future agreement of that type.
I know he has been a good friend to the US but IMHO it has also be expedient to him.
He may not be the traditional socialist but he is still left wing has preceded over the banning of hunting with dogs and other loony left ideas.
Check out the Labour Party's website
http://www.labour.org.uk/home
Yes he has made good speeches but we need more than words we need action that is one the major differences between left and right and him and GWB.