This book is the second installment in the Global Environmental Change Series that links the ecology and biology of global environmental changes with insights and information from other disciplines. This series teaches students how to gather a wide range of information from pertinent areas of study and encourages them to develop their own opinions in order to make decisions and solve problems. Deforestation refers to the clearing of the earth's forest cover such as occurs when forested land is converted to cropland, pastures, human settlements, and other uses, or when a forest's trees are harvested for lumber or other wood products. This book focuses on Washington State's Olympic Peninsula as a case study and contains activities that provide a model for addressing deforestation's ecological and economic impacts. The activities are designed to provide the skills and tools to integrate science with other disciplines to gather information, make decisions, and solve problems. Activities include: (1) Defining Deforestation; (2) Ecological Succession; (3) Soil Erosion; (4) Habitat Loss and Inhabitant Species; and (5) Understanding Land Use. A list of resources is also included. (JRH)