Well I watched the video and he didn't say this.
I believe what I see and hear over what I read.
Question: Do you believe there is a such thing as "global warming" and what about Governor Schwartzenegger's position - do you support him in the legislation (unintelligible)
Rudy: I do. I do believe there's global warming. Yes. And...and I...I think there are...I'm not a scientist all I can do is look at the reports. I think the last one said that...uh...ummm...fir-fir-first of all there's definitely global warming as far as I can tell. I guess the big question has always been how much is it, how much of it is happening because of just natural climate changes and progressions and how much is happening because of human intervention - carbon in particular - and the overwhelming majority of the scientists believe that there's significant human cause that's making it more difficult, making it worse.
So tell me - linking together the three bolded passages, just how do you make the claim that Rudy didn't say he believes that global warming is human-caused?