Check out this interview. The guy asks Gore a couple of very interesting questions to which Gore gives very interesting answers.
Gore answered "I think it's still to early, I can't use that answer for much longer." But it isn't an answer he's been using for very long. At the beginning of An Inconvenient Truth, he didn't use that answer at all. It was a flat "no," which only transformed into a "maybe" a few months ago.
It was like Y2K Gore All Over Again! What he's doing here is trying to seem more thoughtful about Iraq, a very divisive issue, while relying on climate change to be his main bedfellow. What he's actually doing is looking like a total weenie again, which is exactly what lost him the election in 2000. So Gore is officially campaigning, and he's officially looking like a dipstick doing it....alas.