Stephen H. Lockhart, MD, PhD, a board-certified anesthesiologist, is a Vice President and Regional Chief Medical Officer for Sutter Health, a not for profit system of hospitals, physician organizations and research institutions in Northern California. A Rhodes Scholar, he obtained his Masters degree in Economics from Oxford University, and M.D. and Ph.D. degrees from Cornell. For the last six years, he served as Chair of the Board of Directors of NatureBridge, an organization that provides environmental science education to 30,000 young people annually in the National Parks. An avid climber and backpacker, he has a long-standing passion for providing environmental science education and introducing our National Parks to an increasingly diverse population. Dr. Lockhart also serves on the Boards of the National Parks Conservation Association (NPCA), REI and was previously a member of the National Parks Second Century Commission, an independent group of respected leaders and experts who convened to articulate a vision for the second century of the National Park Service and whose recommendations to Congress, the Administration, and the American people were published in September, 2009.