Jeff Opperman is the director and lead scientist for The Nature Conservancy’s Great Rivers Program. Jeff has been working to protect rivers and lakes for more than 15 years. He has provided strategic and scientific guidance to freshwater conservation projects across the United States as well as in China, Africa and Latin America. Through strategy development, scientific research, and support to field projects, Jeff focuses on protecting and restoring river-floodplain ecosystems and improving the environmental sustainability of hydropower.