Space Utilization: A Moral Imperative.- I. Mythical Paradise.- Fire: Formation of Earth and the Solar System.- Earth Before Man: Utopia or Nightmare?.- II. Paradise Lost?.- The Environmental Dilemma: Progress or Collapse?.- Exploding Population.- Climate Change.- Vanishing Life.- Diminishing Energy.- Humans Before the Industrial Age: A Desirable Ecological Goal?.- III. Paradise Regained.- Raw Mate...