1)Steven Westcott talks with Carl Pope of the Sierra Club about the club's vote not to support immigration limits, 2) Nancy Willson describes a plan to create a no-take marine reserve around the Channel Is. Off Santa Barbara, CA 3) Peter Berle interviews author Jon Plaut about the relationship between corporations and environmental concerns, 4) Earth Calendar - Peter Berle describes the spring migration of whooping cranes from Alberta Canada to Texas, 5) Linda Wilson profiles John Carlson who is through-hiking the Appalachian Trail, 6) Talking Green - a discussion of the overtaking of lobsters from the waters off the coast of Maine, 7) Steven Westcott talks with Dr. Peter Fong about his research on the effects of Prozac on the sex lives of fingernail clams