April 27, 2010 – "The Future of Energy: Five Things We're Excited About"
Marvin Odum, President, Shell Oil Company

March 13, 2010 – "Building a Green Energy Economy through Accelerated Innovation" with Kristina Johnson, Under Secretary, U.S. Department of Energy... Read more about Future of Energy: Kristina Johnson

November 17, 2009 – "America's Energy Future: Challenges and Opportunities" with Maxine Savitz, Vice President, National Academy of Engineering; retired general manager, Technology Partnerships, Honeywell, Inc.

November 2, 2009 – "Climate Change: Getting from Science to Law"
Peter Lehner, Executive Director, Natural Resources Defense Council

April 15, 2009 – "A View of Nuclear Power in the World's Energy Future"
Richard Garwin, IBM Fellow Emeritus

April 29, 2009 – "Heat Stroke: Nature in an Age of Global Warming"
Anthony Barnosky, Professor, Department of Integrative Biology, University of California-Berkeley

April 9, 2009 – "The MPG Illusion"
Richard Larrick, Associate Professor of Management, Fuqua School of Business, Duke University

March 18, 2009 – "The Population Bomb: Where We Stand Now"
Paul Ehrlich, Professor of Population Studies, Stanford University

February 3, 2009 – "The Vital Role of Clean Coal in Securing our Energy Future"
Steven Leer, CEO, Arch Coal, Inc.

December 3, 2008 – "Profitable Solutions to Climate, Oil, and Proliferation"
Amory B. Lovins, Cofounder, Chairman and Chief Scientist, the Rocky Mountain Institute

November 19, 2008 – "Energy, Security, and the Long War of the 21st Century"
R. James Woolsey, Venture Partner, VantagePoint