The web of life is unraveling more swiftly than at any time since the extinction of the dinosaurs, sixty-five million years ago.

Even here in the presence of water and stone I cannot forget these ruinous facts. Even here I am hounded by what I have seen — the forests cut down, the land worn out, animals flattened on roads, trash piling against fences, oil slicks in puddles, smoke sullying the air.

Scott Russell Sanders, Writing from the Center