Edward Carr blogged on the recent letter from Rajendra Pachauri to the authors and editors of AR5. This created something of a buzz (see, e.g., Dot Earth) which may have lead to a clarification (see, again, Dot Earth). The reason: In the first letter, Pachauri issued a fatwa: Thou Shalt Not Speak To Journalists. This came on top of an earlier letter by Pachauri which had: Thou Shalt Not Blog. Fortunately, what Pachauri really meant to say was that we are not supposed to pretend that we speak on behalf of the IPCC, as indeed we do not.
Carr lamented the apparent "bunker mentality" of the IPCC with regard to communications with the outside world. I share that regret.
I would add two things, though. Firstly, Pachauri apparently does not trust IPCC authors and editors to be mature enough to say sensible things to journalists. Most of us have PhDs, after all, and many are full professors. We might just slip into juvenile language and compare people to Hitler, accuse them of practicing voodoo, or recommend they rub asbestos in their faces. Better to leave communication to the IPCC leadership, who would never say such things.
Secondly, Pachauri describes the IPCC as a "family". I had always thought that the IPCC was a professional organization. The word "family" evokes a sense of loyalty that is too strong (bunker mentality again). It implies that the composition of the team is determined, somewhat randomly, by a higher power. A family does not invite outside experts to fill gaps in knowledge, and it does not release weaker members from their duties.
Ed Carr was right so: We have learned nothing.