Overwhelming Majority Of Scientists Who Make Their Living Off Global Warming Research – Prefer To Keep Their Funding

Real Science

“I’m not a scientist either,” Mr. Obama told this young audience, “but we’ve got some good ones at NASA. I do know the overwhelming majority of scientists who work on climate change, including some who once disputed the data, have put the debate to rest.”
At Commencement, Obama Mocks Lawmakers Who Deny Climate Change – NYTimes.com

What the president is saying is that he is making up statistics about a group of people he doesn’t know much about, and that he understands those people generally keep their mouth shut because they like to keep their funding and job – and avoid McCarthyite attacks like Richard Tol and others have faced.