Here is a climate professor's site he and his associates are warning of imminent mass human extinction. https://arctic-news.blogspot.com/ Dig back through his posts they are horrifying.
As far as I can tell this site is run by an amateur, not a "climate professor".
It is written by an actual Rutgers Professor who writes it under a pseudonym to insulate themselves from doxing. With occasional guest contributions from an Australian professor.