Here is a long article by John Coleman, founder of The Weather Channel, about the origins of the concerns about atmospheric carbon dioxide as a greenhouse gas. If you read it all, you come away from it with the distinct notion that the motives of the concept's originators were considerably less than pure. They were grant-funded scientists looking for funding - if there was no problem, there would be no funding. Eventually, one of the founders began to urge caution, but of course no one wanted to hear this change of heart.
Warning: reading this article may leave you in the position of knowing more than you want to know about the history of the unfortunate global warming movement. It is long, it is detailed and it names names.
