Contents include: ozone depletion; the greenhouse effect; hazardous organic chemicals; and photochemical smogs.
THE OXYGEN-RICH PLANETHistory of the EarthOxygenMAJOR ELEMENTS FOUND IN LIVING MATTERHydrogenCarbonNitrogenSulfurPhosphorusMAJOR ELEMENTS IN THE EARTH'S CRUSTSiliconIronAluminiumCalcium and MagnesiumSodium and PotassiumMINOR ELEMENTS AND ENVIRONMENTAL PROBLEMSLeadMercuryZinc and CadmiumUraniumRadonHazardous Organic CompoundsAppendixGlossaryIndex