Dr. Shan de Silva, the Department Chair and Professor of the Space Studies department at the University of North Dakota, was the guest for this edition of The Space Show. Given Dr. de Silva's expertise in the subject of volcanism, I began the interview by asking him to clarify the role of earth-based volcanoes with global warming. Dr. de Silva provided us with a solid understanding of the role played by volcanoes and their impact on Earth's atmosphere and climate, and then he explained how this fits into the global warming discussion.