Kind of funny how the Catholic Church is now too far left for some people. Also, the far right is now complaining about religion getting all up in their politics because it isn't convenient...I find this humorous :)
The pope has no place in "politics," [why the hell is climate change "politics"] but he has the largest captive audience of any human being^ and if he uses his pulpit to encourage us to save the planet, cheers.
^there are more Indians and Chinese than there are Catholics, but neither of the former groups will listen to any one person. Catholics pretty much listen to the pope, even if they don't like him.