I’m also as critical of extremist climate change advocates as I am of climate change deniers. I feel a big source of the difficulty we have convincing the public is the fact that there are some real kooks saying things that just turn people off.
Here is a National Geographic article on extreme climate change ideas. Some aren’t so bad (painting roofs white is a very good idea and already practiced in many areas of the world). But, some are not very good at all.
Take a look for the fun of it, if nothing else.