This book helps middle school and high school students address environmental issues in an intelligent and productive manner. The lessons introduce economic reasoning and show students how to apply it to environmental problems. The 18 lessons are divided into four units addressing: the environment and the economy; incentives; use of market forces to improve the environment; and public choice theory and the environmental movement. Lesson titles include: (1) "The Problem of the Homeless Salmon"; (2) "Romancing the Past"; (3) "Own It or Lose It"; (4) "The Environment: Who Loves Ya, Baby?"; (5) "How Clean Is Clean Enough?"; (6) "How Can We Help the Endangered Species?"; (7) "Using Rewards to Protect Endangered Species"; (8) "The Costs and Benefits of Having Children"; (9) "Why Are There So Few Whales and So Many Chickens?"; (10) "Why Do Nonrenewable Resources Keep Increasing?"; (11) "Can Insecticides Help Us Fight Cancer?"; (12) "Why Drive When You Can Ride?"; (13) "Will There Be Enough Food For You?"; (14) "Do We Make Too Much Stuff?"; (15) "Save the Babies"; (16) "Why Would People Cut Down Trees in a Public Park?"; (17) "The Mystery of the Disappearing Christmas Trees"; and (18) "What is Worth Recycling?" (EH)