abge,
I agree, although obviously not everybody in class 1 would be subject to such (which I'm sure you didn't mean to imply they were).
I do think there's another class we could add, though, which may touch a little on krellin's article (or the part you quoted from it -- I didn't read the article): people who are naturally suspicious of corporations and industry, and believe they are evil and killing us in various ways. While, again, not all of these people would necessarily believe in something for bad reasons, a lot of them would find it very natural to believe a narrative in which industrial activity led to large-scale destruction and demise; and there might indeed be a strong motivation to believe it, to the extent that the belief could justify severely regulating the entities they hate.
So while I doubt there was anything like a large-scale caclculation of the "Communism is dead, so we need global warming" type, I do think one can posit a possible natural connection between left-leaning beliefs and belief in global warming. Actually, the opposite is absolutely true as well: a great many conservatives disbelieve in global warming because of the regulatory consequences it might have.
So I think that, at least possibly, a lot of people on both sides believe what they believe about it *more* because of their economic preferences than anything that would actually resemble warrant.