And that's me. And I object. They addressed a packed room liberally peppered with well-pierced youths who initially expressed displeasure with this dissenting opinion. The audience, however, settled down and in fact stayed in large numbers for extended discussions with the scientists afterward in the hallways. As such, their point was that it is misleading to refer to IPCC as thousands of scientists who are in some sort of agreement.
Nations elect a bureau and working groups of between five to twenty science authors.
Summaries of the working groups are drafted by a small subset of these contributors. IPCC is not science. At its best, it is an assessment of science. At its worst, it is political science. Those are political choices, not science assessments.