James Hansen, Michael Mann, David Appell, and many other warmists advocate prosecuting climate skeptics for what they believe, and making climate skepticism a crime.
There is a long tradition behind the idea of making politically incorrect thought illegal. It was SOP in the Soviet Union and Nazi Germany.
Warmists believe that the survival of the planet depends on their nutty belief system, just as Islamic extremists do. It is amazing that Dinosaurs survived 165 million years with CO2 levels 10X higher than at present.