From my experience (been to BM a few times, not recently though), most Burners are left of center and would likely accept anthropogenic climate change as real. Likely for political reasons rather than scientific reasons, though, as many of those same Burners would also happily accept that crystals/magnets/heavily diluted water can cure disease and that the positions of nearby planets relative to distant stars from the perspective of Earth combined with how many times the moon had orbited Earth since January 1st on your birthday can vaguely predict what's going to happen to you in the next week or so.