It looks like the credibility of the IPCC is diminishing by the day. I hope some trustworthy body which is concerned about climate change but strong enough to avoid the kind of bias and shoddy lack of rigour we've seen from the IPCC can come through to take its place.
Politically speaking, it won't happen. Global warming is inextricably bound up with the IPCC in people's minds. So much effort was expended on telling everyone that they had to believe the IPCC because it was a consensus of all the scientists in the world (what, you think you're smarter than all the scientists in the world?) that to come along now with "Did we say that consensus? We meant this consensus" can't possibly work.
I meant to post this the last time the subject came up, just for the record: it's beginning to look like the IPCC (and with it, perhaps, the entire issue) has hit its peak.