This workbook, developed for an international workshop held in the Philippines in 1994, is designed to enrich adult environmental education worldwide and to ensure that the International Treaty on Environmental Education for Sustainable Societies and Global Responsibility is implemented in an action-oriented program. The workbook is organized in five sections. Section 1 introduces the workbook and the process; it includes information on the International Council for Adult Education and the Learning for Environmental Action Program and provides a rationale for the workbook, background to the workshop, and workshop goals. Section 2 contains 18 case studies, some of which were written by workshop participants and others reprinted from newsletters and other sources. The case studies report on environmental education projects and workshops in the following countries: Ethiopia, Uganda, Uruguay, Canada, Argentina, Cameroon, Brazil, Lesotho, South Africa, Chad, Botswana, Bolivia and India, the Netherlands, Italy, Hungary, Sri Lanka, and Hong Kong. The third section consists of background materials on environmental education that can be used as references for training workshops. Some of the topics covered include the following: the history and definition of environmental education, basic concepts of environmental education, nonformal environmental education, planning environmental education at the national level, principles of environmental citizenship, principles of adult education, adult education program planning and design, needs assessments, the adoption and diffusion of new ideas, changing behavior, urban problems and environmental education, more on urban environmental education, teaching global change through environmental education, round tables--an approach to decision making, how to build consensus, producing environmental education materials, using computers in environmental education, and environmental education networks. Section 4 provides sample worksheets that can be used in training workshops. The final section lists resources such as magazines and newsletters, environmental education centers, and other information and 27 references. Three appendixes contain the following: the Treaty on Environmental Education for Sustainable Societies, the Pre-workshop questionnaire for the Philippines workshop and the agenda for the Philippines workshop, and four background papers--"Workshop Goals Proposed by the Meeting of Experts at Curacao, Netherlands Antilles, May 12-18, 1994"; "SEED'ing for a Liberative Adult Education in Environment in the Asian South Pacific Region" (Noel C. Duhaylungsod); "Trends and New Projects for Environmental Education in Germany" (Heino Apel); and "Adult Environmental Education: A Regional Report for North America" (Mark A. Burch). (KC)