The most important thing to understand about an environmental concern is that it is infinitely malleable. It has Play-Doh’s or putty’s wonderful power of accommodation, to take whatever shape, for the moment, might be called for. Because the environment is, by definition or tautology, everything that is around us — there will always be something “in” the environment on which to hang an objection, mount a protest or, as Samuel Johnson, ever elegant, put it, “to point a moral, or adorn a tale.”