Summary: This week, host Daniel Raimi talks with Harvard University Professor David Keith about solar geoengineering. Keith describes the variety of ways that solar geoengineering could work; some of its risks at local, regional, and global scales; recent small-scale experiments; and what might be needed to deploy a larger-scale research program. Raimi and Keith also discuss public policies related to potential deployment technologies, including the substantial issues surrounding governance and geopolitics. References and recommendations: "Inner Ranges" by Geoff Powter; https://rmbooks.com/book/inner-ranges/ "Pilgrims of the Vertical" by Joseph E. Taylor III; https://www.hup.harvard.edu/catalog.php?isbn=9780674052871 "Environmental Insights" podcast with Robert Stavins; https://scholar.harvard.edu/stavins/environmental-insights-podcast
