The point of conservatism, you see, is not political. Real conservatives get involved in politics because they have to, not because they want to. And they have to to rectify obvious disasters or utopian assaults on freedom or radical attacks on established modes and orders. We are conservative in politics in part to restrict the claims of politics and to enlarge the claims of life.
More or less straightforward, most of the time.
But if global warming is an 'obvious disaster' in need of rectification, don't some of its remedies include 'utopian assaults on freedom or radical attacks on established modes and orders'? How do you separate out the pragmatic and prudential from the utopian and radical?
For the conservative who's convinced by the threat of man-made global warming, it's a tricky one. But unless a way can be threaded through this conflict, I don't think anything substantive is going to be achieved, at least while the consequences of global warming lie in the future. People and their governments, naturally conservative despite the rhetoric of politicians, won't wear it.
UPDATE: Just come across this - a good analysis of the problem.