This is an AP story.
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....