Peer review: Oreskes v. Peiser
You might not like peer review, but as has been shown earlier, Oreskes peer-reviewed work demonstrating a consensus on anthropogenic GW has come out pretty well so far, while Peiser's non-peer-reviewed attack on her work was found to be a pile of crud when people actually looked at it. The large amount of peer-reviewed articles examining AGW have a credibility that the denialists don't have, as proven yet again when Peiser was pitted against Oreskes.