While there are always stragglers, climate change denial has evolved and I think will soon move to a new level. First they denied it was happening, then they agreed it was happening but said humans didn't cause it. The next step is to accept that humans are causing it but say it will cost too much to do anything about it and trying to change things will just destroy the world economy so just accept it and move on.
True, the arguments against doing something about climate change are kind of inconsistent.
1. What climate change?
2. OK, there's climate change, but it's natural causes
3. OK, humans caused climate change but it's too expensive to do anything about.
For some reason, the people in these categories don't argue with each other, but only with people who say that we should do something about climate change.