Mark Nelson, Biosphere 2

Today we are joined by Dr. Mark Nelson, one of the eight original scientists who lived inside Biosphere 2 for two years in the early 90s. The events of Biosphere 2 were chronicled in the excellent documentary Spaceship Earth (available on Hulu), one of Ian's favorites from Sundance. Dr. Nelson talks at length about his experiences inside Biosphere 2, as well as many of the discoveries they made along their journey.

Dr. Nelson has a new book out called Life Under Glass: Crucial Lessons in Planetary Stewardship from Two Years Inside Biosphere 2. You can purchase it here: https://www.synergeticpress.com/shop/life-under-glass/

Dr. Nelson's other books include Pushing our Limits: Insights from Biosphere 2  (https://www.amazon.com/Pushing-Our-Limits-Insights-Biosphere/dp/0816537321) & The Wastewater Gardener: Preserving the Planet One Flush at a Time (https://www.synergeticpress.com/shop/the-wastewater-gardener/)