Bleg: What is the politically correct position in regard to climate change on the American right at this moment?

I don’t have the patience to try to figure this out myself, so I’m asking for free help from our learned commentariat. (BTW one of the few times I’ve felt sort of like a lawyer in recent years was when I was watching The Intern a couple of days ago, and kept being bothered by the fact that the movie’s plot is just a giant FLSA violation. Why must Hollywood be so unrealistic?).

My very rough understanding of right-wing orthodoxy on climate change is that it’s slowly evolving along something like the following spectrum of positions:

(1) The earth is not actually getting hotter.

(2) The earth is getting hotter, but human activity is playing no role in this development.

(3) The earth is getting hotter, but human activity is only playing a relatively small role in this development.

(4) The earth is getting hotter, human activity is playing a major role in this development, but any and all attempts to mitigate the situation will do more harm than good.

Does this about cover it? I would expect the next stage would be something like “OK we have to do something, but it should be done through huge tax breaks for corporations, not Wasteful Government Programs.” Or are we there already?