A lot of climate change deniers like to tout the fact  that they were an “Expert Reviewer” for the last Intergovernmental Panel on Climate Change, and a few DeSmog readers have been asking what exactly if takes to become an “Expert Reviewer.” Well, thanks to our friend Tim Lambert at Deltoid Blog  it turns out that an “Expert Reviewer” really isn't as exciting and not nearly as prestigous as it sounds. Tim writes:
“Expert reviewer for the IPCC” doesn't mean that they asked him to review material – all it means is that he asked to see the draft report . The only real requirement to be a reviewer is to sign an agreement not to publicly comment on the draft.”
I have confirmed this with one of the authors of the updated IPPC report.