Nobody has ever (to my knowledge) put a percentage on the effect humans have on climate change (yeah, it's very complicated, we get it, but put out a hypothesis ). Is it two percent? Five? 25? If scientists put a percentage on it, more people/politicians would take it seriously.
You also need a CBA on what if anything can reverse that mysterious percentage so a rational debate can be had. These guys are really no different than faith believers in their approach. We have to believe or die
I like to equate rational belief in the scientific process with the ramblings of old codgers in cassocks, I do that.
Where is the rational belief in science?