Environmental education is generally thought to be an approach to teaching and learning that will help students develop the knowledge, skills, and values basic to environmental problem solving. This report addresses the need for environmental education and attempts to clarify definitions of some of the efforts such as outdoor education and conservation that have served as forerunners of environmental education. It includes a copy of the conference declaration of the world's first intergovernmental conference on environmental education which was held in Tbilisi, Russia, in 1977. Five basic objectives for environmental education are discussed, along with the need to infuse environmental education into the K-12 curriculum. Included is a set of seven short case studies of exemplary environmental education programs along with a list of resource materials on the subject. (TW)