[aniviacat]

The AfD still does not believe in man-made climate change.

How are you supposed to reason about that? If AfD members ignore obvious scientific developments, you can't really do much more than present yet another paper saying that yes, man-made climate change is indeed a thing, just for then to ignore it, too.

You cannot reason with someone who does not want to be reasoned with.

You can claim that many policies by the AfD are made in good faith. (I don't believe that, but I'd be willing to entertain the thought.)

But once you get to something like if climate change exists, there isn't really any way you can argue with reason anymore. You are met with pure denial. Denial, which is used as a base for action that is clearly and actively destructive.