Specifically, he addresses the accusations of error referred to (somewhat absurdly) as Glaciergate, Amazongate and Africagate. (blogs.nature.com)
The IPCC, which according to its rules should be run by our governments, delegated the decision on which IAC recommendations should be accepted and when to very people that run the IPCC on a day to day basis and under whose watch Climategate and Glaciergate happened. (judithcurry.com)
The IAC noted not only the aforementioned Glaciergate problem but also other problems regarding not only sources of information but also the lack of transparency, lack of ability to answer questions, election of an executive director (sounds like they didn't like Pachauri), and the lack of a probability scale to show how much of a chance some of their outrageous claims have of actually happening (like slim & none should be one). (co2insanity.com)