Fourteen units for high school global education classes are based on "The Global 2000 Report to the President," which examines the relationships between worldwide population growth and resource and environmental consequences. Topics of the units are population; income; food; fisheries; forests; water; nonfuel minerals; energy; impacts on agriculture, water resources, forest losses, and the world's atmosphere and climate; nuclear energy; and species extinction. Each unit includes a narrative that describes the primary issue covered; an activity or problem that students complete, usually within the confines of the classroom or library; and activities consisting of games, debates, and research projects. The final section of each unit suggests specific ways that students can make a difference in the environment when they participate in family, school, and community action programs which are designed to effect change. For example, students can make a difference when they try to save water in their everyday life and when they test water from a local lake for acid rain problems. The accompanying teacher overview includes methods for introducing and using the materials and a chart describing learning objectives, skills, subject links to other topics, and teacher tips. Audiovisual and printed materials are available from the publisher. (KC)