This is an examination of man's new relationship with nature ranging from consequences of the greenhouse effect, global heating, changing weather patterns, rising sea levels and evaporating rivers to changes in the world's economic and political power structure. The author sees this new phase in our planet's history as profoundly sad as the comforting sense of predictability and permanence in the natural world is no longer valid. He contends that we have reached the end of nature as we know it. More a a conventional futuristic book, it considers man's moral and practical dilemma as he confronts environmental issues, and the author presents two philosophical alternatives for survival.