J Shell interviews Dr. William Moomaw, Professor Emeritus of International Environmental Policy at Tufts University, and founding director of the Center for International Environment and Resource Policy at the Fletcher School at Tufts. Dr. Moomaw received his bachelor’s degree in chemistry from Williams College and his PhD in chemistry from MIT. Dr. Moomaw has worked at the intersection of science and policy, advocating for international sustainable development. His current focus is on natural solutions to climate change, with a focus on increasing CO2 removal and sequestration by forests, wetlands, and soils.