What do you call a report on climate change prepared by 830 scientists around the world?
No, this gentleman is not attempting to describe the arrangements that enable these scientists to share their conclusions with each other. Nor is he describing the rigours of the scientific method, and the contribution of peer reviewed papers.
Group think is a “put down” of experts that global warming sceptics don’t agree with.
It is puzzling how anyone could use the term in the context of the consensus of 97% of scientists who advise us about global warming and its causes.