This handbook of environmental education was sponsored by the International Union for the Conservation of Nature (IUCN). It provides information on the methods of environmental education and promotes the exchange of details of new methods and materials. The book describes the present world position in environmental education and points the way for future developments. Among the topics discussed by the international writing team are: perspectives; curriculum design; method; materials, facilities and media; youth involvement and community action; evaluation; and teacher education. Each topic area is supplemented with illustrative case studies. A bibliography and a list of the case studies with contact addresses concludes this publication. (BT)