Apply the same idea Sowell points out here, with respect to economists, to scientists paid by the government on Catastrophic Anthropogenic Global Warming issues, vs. scientists paid by others (oil companies et al). Note the government scientists are being paid by people with a vested interest in increasing their own power via the findings of those paid-for scientists.
And Sowell already covered that. That’s what I get for posting based on the excerpt instead of reading the full article first.