Sounds like he's ranting on a linguistic or rhetorical peeve rather than combatting actual environmentalism. When someone says we should "save the earth", they quite obviously don't think that, for example, pollution is going to make the planet explode, or something like that. Environmentalism is not about saving the planet itself - Earth will keep on spinning for several trillion years regardless of what we do. Envi…
Carlin's philosophy, particularly toward the end, was that humanity as a whole is doomed. The thesis is "The planet isn't going anywhere; we are" Note that he didn't say "will" or "may"; he said are.
To him, trying to save even ourselves was only slightly less arrogant and ill-founded than trying to save any other endangered specie and just as doomed an effort.
His certainly wasn't a hopeful philosophy, but he was consistent within it.