Presents discussions from a three-day teleconference aimed at educators, during which various aspects of global change were discussed; also discussed were the advances the scientific community is making in understanding its impact on the environment. Global change overview / Robert W. Corell (6 min., 10 sec.) -- Natural variability / Barrien Moore III (16 min., 27 sec.) -- Greenhouse effect / Richard H. Gammon (11 min., 7 sec.) -- Ozone depletion / Richard H. Gammon (10 min., 34 sec.) -- Ecosystem response / Lisa J. Graumlich (11 min., 02 sec.) -- Population/resource consumption / Dennis L. Meadows (16 min., 11 sec.) -- Policy relevant research / Eileen L. Shea (6 min., 39 sec.).