Clinton isn't exactly an environmentalist. Kerry is hardcore environment.
Kerry is one of the original Earth Day Organizers.
When he was Lt Governor of Mass he led the fight against Acid Rain.
He helped keep the CAA from being bastardized.
I have many problems with Kerry, but on the Environment he is truly strong. I have no doubt he will sign Kyoto
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Now, he will have many problems with the Senate when he tries to do that. If we're lucky the Democrats can wrest control of that as well.