Be an environmentalist: it’s easy and fun
I think people become enamoured of environmentalism because it is an easy issue to embrace. It really requires no moral courage and will get you all sorts of plaudits with very little effort. I am also a great believer in the responsibility to combat pollution and to preserve the natural world (it’s in Genesis…) but I don’t think it needs to be a moral priority.
I fear the main reason the pope is promoting it because it is easy, will make him popular and presents no real difficulties.