1.) Host Peter Berle talks with Carol Browner of the Environmental Protection Agency about the Safe Drinking Water Act. 2.) Susan Drennen of the Audubon Society remembers bird watching pioneer Roger Tory Peterson. 3.) Thomas Lalley reports on the controversy surrounding nuclear waste disposal and talks with Eileen Supko of Energy Resources International. 4.) In the segment Earth Calendar, Berle talks with Ron Nevine of the Oceanites Foundation about emperor penguins.