In the speech, he never said humans cause GW. The closest he came was to say that the IPCC said GW was caused by humans.
Econuts were not happy!
http://environment.about.com/od/governmentscorporations/a/bush_plan.htm
That speech was pure genius...no mandatory anything, doing it outside of UN control, a “goal” of an 18% reduction in GHGs, yada, yada, yada....
We'll have to agree to disagree on this one. To me, talk of reducing greenhouse gas emissions implies a belief that humans play a role in this alleged environmental crisis.