The dual purpose of this module is to introduce students (grades 10-11) to current/emerging environmental issues and to emphasize the moral/ethical decision-making related to these issues. The module is organized into 12 topic areas, each containing a dilemma story, introductory reading material, sample student responses, and questions. Dilemmas are essentially brief stories which pose a critical decision to be made by a main character. This decision revolves around conflicts between two or more moral/ethical issues (as identified by Kohlberg) presented in the situation, and it is the moral/ethical implication that provides the thrust for student discussions. Preceding each dilemma are relevant readings or case studies providing basic background information regarding the environmental issue presented in the dilemma. Questions and sample student responses (representing positions taken by typical students) serve to stimulate thinking about the issues and generate discussions. Issues examined include water shortage; world food supply; protecting access to sunlight for solar heating/power purposes; microwave; nuclear power; coal; DDT (an insecticide); waste disposal/hazardous chemicals; polyvinyl chloride (PVC) and hazardous materials; wastewater treatment; and overproduction. The module may be used as a separate unit of study, mini-course, or incorporated into civics, history, biology, chemistry, environmental science and earth science courses. (JN)