This guide provides educators and residents of the border with useful information about environmental education program offerings along the eastern half of the United States-Mexico border. The programs listed in the guide represent a broad range of educational efforts focused on understanding the environment and solving environmental problems in the border communities. The guide contains information about environmental education programs offered by organizations in Southern New Mexico, Southern Texas and the Northern reaches of Chihuahua, Coahuila, Nuevo Leon, and Tamaulipas. (Mexico) (SAH)