This manual was written to help youth groups organize and implement environmental action projects in their communities. Because numerous types of groups exist around the world, the term "youth group" is used to represent any organized effort of young people. The activities in this document were designed for ages 12-20. Although groups with prior experience in community projects may find this manual a useful source of additional hints and activities, the major focus of the guide is directed toward groups with an environmental interest and little previous experience in environmental action. It contains sections dealing with: (1) the World Conservation Strategy; (2) an example of a project involving the pollution of a local pond; (3) ecological processes, genetic diversity, and sustainable use; (4) program planning; and (5) a variety of activities related to awareness, concepts, values, skills, and learning about issues. The appendices include a glossary, a list of conservation strategies from various countries and a list of related materials. (TW)