Moore Hall, Filene Auditorium, Dartmouth College (For more information, please contact the Sierra Club, 802-885-4826.) Dr. Helen Caldicott, author of If You Love This Planet: A Plan to Heal the Earth and Nuclear Power is Not the Answer, has devoted the last thirty eight years to an international campaign to educate the public about the medical hazards of the nuclear age and the changes necessary in human behavior to stop environmental destruction. Dr. Caldicott’s visit to Vermont is timely as our state grapples with the health and environmental impacts of tritium leaks at the Vermont Yankee nuclear power plant in Vernon. Dr. Caldicott’s speaking tour of Vermont tour is supported by Green Mountain Global Forum; VNRC; VPIRG; Edmundite Center for Peace and Justice at St. Michael’s College; Sierra Club; and Big Picture Theater. Books will be available for sale at the event by the Norwich Bookstore.