Nature itself, left alone without human interference, is what you might call wondrously beautiful in all respects. Even natural death has its positive side. Nothing goes to waste; everything is recycled. Then, humans came along and began to spoil it. Try as we may to recycle, not everything — many plastics, for example — is recyclable. Let’s face it, we’ve made one humongous mess of things and we have very little time before the lights go out to make it right again.