This is John Barentine’s second appearance and we still haven’t exhausted the conversation. How do we solve the light pollution problem? John has some ideas. Use reason and science and, as is John’s mission, give people the transformational experience of the night sky. How do we help that happen? By implementing the existing knowledge and technology of the lighting industry that knows how to make that a reality NOW! John Barentine is the Principal Consultant at Dark Sky Consulting, LLC, and was formerly the Director of Public Policy for the International Dark-Sky Association. He earned a Ph.D. in astronomy from the University of Texas at Austin, and previously held staff positions at the National Solar Observatory, Apache Point Observatory, and the Sloan Digital Sky Survey. Throughout his career, he has been involved in education and outreach efforts to help increase the public understanding of science. He is a member of the American Astronomical Society and the International Astronomical Union, and is a Fellow of the Royal Astronomical Society. The asteroid (14505) Barentine is named in his honor. His interests outside of astronomy and light pollution research include history, art and architecture, politics, law and current events.