Abstract: This research project identified concepts from the social sciences that are prerequisite for understanding or analyzing environmental issues. Concepts were identified through a review of social science textbooks and educational materials and through interviews with social scientists. A list of 57 concepts was sent to a validity panel to rate each concept for clarity, acceptability to environmental education, and importance to environmental education. Means and standard deviations were calculated. Results showed that the panelists generally thought the concepts were acceptable and important to environmental education. Concepts were then revised and 6 were added based on panelists' comments.