The Weekly Standard does a very good job documenting all of the scandals and forced retractions by the IPCC. As you might expect, there are rather more of them than have been published in the "mainstream" media. It makes for a long article, and taken together, they are incredibly damning. Having read them, I do not think "hoax" is too strong a word to describe these instances - and the comparison of Climategate to The Pentagon Papers is apt.

Though the cover drawing of an unclothed Al Gore isn't really something I wanted seared into my brain....