Tangentially Speaking With Dr. Christopher Ryan

Mark Nelson is an American ecologist and author based in Santa Fe, New Mexico. His research focuses on closed ecological system research, ecological engineering, restoration of damaged ecosystems, and wastewater recycling. Nelson was one of the eight original crew members of Biosphere 2 in 1991.Intro music “Brightside of the Sun,” by Basin and Range; “If I had a Million Dollars,” by Barenaked Ladies; Outro: “Smoke Alarm,” by Carsie Blanton. This is a public episode. If you’d like to discuss this with other subscribers or get access to bonus episodes, visit chrisryan.substack.com/subscribe