When the politicians claim that the public isn't interested any longer in environmental conservation, they're half right. People are actually afraid to be interested, because they suspect—I think rightly—that we'll find if we dig deep enough that we've gone so far beyond the limits of what the planet will tolerate that only a major catastrophe which cuts back both our population and our ability to interfere with the natural biocycle would offer a chance of survival.

August CHECK AND BALANCE - The Sheep Look Up (1972)