Science and Security Board

Lynn EdenLynn Eden (Co-Chair)

A senior research scholar and associate director for research at Stanford Univeristy’s Center for International Security and Cooperation. Eden is also co-chair of U.S. Pugwash and a member of the International Pugwash Council. Her scholarly work focuses on the military and society, and nuclear weapons history and policy, including nuclear abolition. Eden’s Whole World on Fire: Organizations, Knowledge, and Nuclear Weapons Devastation won the American Sociological Association’s 2004 Robert K. Merton award for best book in science and technology studies.

Rod EwingRod Ewing

Ewing is the Frank Stanton Profesor in Nuclear Security in the Center for International Security and Cooperation in the Freeman Spogli Institute for International Studies and a Professor in the Department of Geological and Environmental Sciences in the School of Earth Sciences at Stanfort University. Ewing’s research focuses on the back end of the nuclear fuel cycle, mainly nuclear materials and the geochemistry of radionuclides. He is the past president of the International Union of Materials Research Societies. Ewing has written extensively on issues related to nuclear waste management and is co-editor of Radioactive Waste Forms for the Future and Uncertainty Underground: Yucca Mountain and the Nation’s High-Level Nuclear Waste. He received the Lomonosov Medal of the Russian Academy of Sciences in 2006. He was recently appointed by President Barack Obama to chair the Nuclear Waste Technical Review Board.

Sivan Kartha

Kartha is a Senior Scientist at the Stockholm Environment Institute and Co-leader of an institute-wide theme Managing Climate Risks. His research and publications for the past fifteen years have focused on technological options and policy strategies for addressing climate change, and he has concentrated most recently on equity and efficiency in the design of an international climate regime. Kartha also works on mitigation scenarios, market mechanisms for climate actions, and the environmental and socioeconomic impacts of biomass energy. His work has enabled him to advise and collaborate with diverse organizations, including the UNFCCC Secretariat, various United Nations and World Bank programs, numerous government policy-making bodies and agencies, foundations, and civil society organizations throughout the developing and industrialized world. He is currently serving as a Coordinating Lead Author for the Intergovernmental Panel on Climate Change.

Lawrence KraussLawrence Krauss

Krauss is the inaugural director of the Origins Initiative at Arizona State University and foundation professor at ASU's School of Earth and Space Exploration and Physics Department. In addition to writing the best-seller, The Physics of Star Trek, Krauss has written six other books, including Fear of Physics and the science epic Atom: An Odyssey from the Big Bang to Life on Earth…and Beyond. He also frequently writes commentary for New Scientist magazine.

Leon LedermanLeon Lederman

An internationally renowned high-energy physicist, Lederman is director emeritus of Fermi National Accelerator Laboratory in Batavia, Illinois, and holds an appointment as the Pritzker Professor of Science at the Illinois Institute of Technology. Among his many honors are the Nobel Prize in Physics, the National Medal of Science, and the Enrico Fermi Prize awarded by President Bill Clinton.


Raymond T Pierrehumbert

Pierrehumbert is Louis Block Professor in Geophysical Sciences at the University of Chicago. He was a lead author on the IPCC Third Assessment Report, and a co-author of the National Research Council report on abrupt climate change. He was awarded a John Simon Guggenheim Fellowship in 1996, which was used to launch collaborative work on the climate of Early Mars with collaborators in Paris. He is a Fellow of the American Geophysical Union (AGU), and has been named Chevalier de l'Ordre des Palmes Académiques by the Republic of France. Pierrehumbert's central research interest is how climate works as a system and developing idealized mathematical models to be used to address questions of climate science such as how the earth kept from freezing over: the faint young sun paradox. Current interests include climate of extrasolar planets.

Ramamurti "Doug" RajaramanRamamurti "Doug" Rajaraman

Rajaraman is an emeritus professor of physics at Jawaharlal Nehru University and a co-chair of the International Panel on Fissile Materials. His research areas include particle physics, quantum field theory, and solitons. He has written about fissile material production in India and Pakistan and the radiological effects of nuclear weapon accidents.

Robert RosnerRobert Rosner (Co-Chair)

Rosner is the William E. Wrather Distinguished Service Professor in the departments of Astronomy and Astrophysics and Physics at the University of Chicago. Rosner recently stepped down as Director of Argonne National Laboratory, where he had also served as Chief Scientist. His research is mostly in the areas of plasma astrophysics and astrophysical fluid dynamics and magnetohydrodynamics (including especially solar and stellar magnetic fields); high energy density physics; boundary mixing instabilities; combustion modeling; applications of stochastic differential equations and optimization problems; and inverse methods

Jennifer SimsJennifer Sims

Sims is currently a senior fellow at the Chicago Council on Global Affairs and is writing a book on intelligence in international politics. She is also a consultant on intelligence and homeland security for private corporations and the US government. In 2008, the president of the United States appointed her to the Public Interest Declassification Board, which advises the president on the declassification policies of the US government.  Sims received her MA and her PhD from Johns Hopkins University’s School of Advanced International Studies. In 1998, Sims received the intelligence community’s highest civilian award, the National Distinguished Service Medal.

Richard SomervilleRichard Somerville

Somerville is Distinguished Professor Emeritus and Research Professor at Scripps Institution of Oceanography, University of California, San Diego. His research is focused on critical physical processes in the climate system, especially the role of clouds and the important feedbacks that can occur as clouds change with a changing climate. His broader interests include all aspects of climate, including climate science outreach and the interface between science and public policy. He was a Coordinating Lead Author of the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC). The IPCC shared the 2007 Nobel Peace Prize equally with Al Gore.

Sharon Squassoni

Squassoni currently directs the Proliferation Prevention Program at the Center for Strategic and International Studies in Washington, DC. She has specialized in nuclear nonproliferation, arms control and security policy for three decades, at the Arms Control and Disarmament Agency, the State Department, and the Congressional Research Service.  She has also held positions at the Institute for Defense Analyses, the Carnegie Endowment for International Peace, and Newsweek magazine.  She received a Bachelor of Arts degree from the State University of New York at Albany, a master’s in public management from the University of Maryland, and a master’s in national security strategy from the National War College.


David Titley

Titley is a nationally known expert in the field of climate, the Arctic, and National Security.  He served as a naval officer for 32 years and rose to the rank of Rear Admiral. Titley’s career included duties as Commander, Naval Meteorology and Oceanography Command, Oceanographer and Navigator of the Navy, and Deputy Assistant Chief of Naval Operations for Information Dominance.  While serving in the Pentagon, Titley initiated and led the US Navy’s Task Force on Climate Change.  After retiring from the Navy, Titley served as the Deputy Undersecretary of Commerce for Operations, the Chief Operating Officer position at the National Oceanic and Atmospheric Administration. Titley has spoken across the country and throughout the world on the importance of climate change as it relates to National Security.  The Department of Defense requested he present on their behalf at both Congressional Hearings and the Intergovernmental Panel on Climate Change (IPCC) meetings from 2009 to 2011. Titley is a member of the Hoover Institution's Arctic Security Initiative, and serves on the Advisory Boards of the Applied Research Laboratory at Penn State, the Center for Climate and Security, Columbia University's Center for Research on Environmental Decisions, and the Association of Climate Change Officers.  He is a member of the National Academies of Science committee on Geoengineering and the Center for Naval Analysis' Military Advisory Board and co-chairs the National Research Council's "A Decadal Survey of Ocean Sciences" committee.

Elizabeth WilsonElizabeth Wilson

Wilson is an Associate Professor of Energy and Environmental Policy and Law at the Humphrey School of Public Affairs at the University of Minnesota. Her research examines policies and institutions supporting development of carbon-managed energy systems. She holds a doctorate in Engineering and Public Policy from Carnegie Mellon University and was selected as a Leopold Leadership Fellow in 2011.