So many people point to politicians as the problem, but remember the people who keep them in power. Politicians are just people who play the numbers, which is exactly how a republic is supposed to operate.
Yes that's correct and it works assuming the population is accurately informed. There's been a huge propoganda push against the idea of human caused climate change. And it's largely worked. I'm sure many of the politicians even believe it.
I think it has a lot more to do with moneyed interests who would lose out on climate-change regulation than with a tremendous bloc of voters who will not support a candidate who believes climate change is real.