re: point
Follow the money and the power. For example, cap and trade schemes, depending on how far-reaching they are, will move anywhere from $1 to 5 trillion dollars through the government. The U.N. would dearly love this kind of thing on an international basis.
Scientists don't, for the most part, give a rat's ass about politics. They're not the problem, except insofar as they have to stay on the good side of the peers.