This is an excerpt from a paper by Deepak Lal, an economist at UCLA. It dates from the year 2000.
My friend John Flemming who was then chief economist at the Bank of England, and also chairing a subcommittee of one of the UK's research councils, told me on reading the lecture that I would get nowhere by taking on the scientists who, at a meeting he attended to distribute funds for climate research, had explicitly said that they were not going to behave like economists by disagreeing with each other!