Dr. Jonathan Koomey is a lecturer at Stanford University. His academic work, summarized in nine books and more than 200 articles, spans engineering, economics, public policy, and environmental science. Dr. John P. Holdren was Director of the White House Office of Science and Technology Policy and Co-Chair of the President's Council of Advisors on Science and Technology in the Obama administration. Before that he was a professor and program director at Harvard University and Woods Hole Research Center. His awards include a MacArthur Foundation Prize Fellowship and the John Heinz Prize in Public Policy, among others. He returned to Harvard as a professor in 2017.