When Trees Were Old – Humans and Environmental Change in the Potomac River Watershed
Speaker: Jim Cummins. Cost: $15; free for fall subscribers and SU students and employees. An overview of how changing landscapes, over hundreds of millions of years—focusing upon 22,000 years ago to present—have affected the Potomac River, its watershed, and surrounding areas. Jim Cummins is a fisheries biologist and aquatic ecologist who served as Director of […]