September 30, 2010 – "How to Conserve a Large Tropical Wildland Through Biodiversity Development: Costa Rican Example" Daniel H. Janzen, Thomas and Louise E. DiMaura Professor of Conservation Biology, University of Pennsylvania
April 22, 2010 – "Food Webs in River Networks: Algal Mediated Linkages of Rivers to Watershed and Nearshore Marine Ecosystems" Mary Power, Professor of Integrative Biology, University of California Berkeley
April 12, 2010 – "Population Dynamics in Epidemic Malaria: Climate Forcing and Parasite Evolution" Mercedes Pascual, Rosemary Grant Collegiate Professor of Ecology and Evolutionary Biology, University of Michigan
February 17, 2010 – "Acute Infectious Diseases in Space and Time" Bryan Grenfell, Professor of Ecology and Evolutionary Biology and Public Affairs, Woodrow Wilson School, Princeton University
February 4, 2010 – "Bioenergy, Biodiversity, Food and Global Change Mitigation: Can we have it all?" Stephen Long, Professor of Crop Sciences, Robert Emerson Professor, and Resident Scientist for the National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign
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.
October 13, 2009 – "Promise and Challenges of Renewable Energy" with Michael Skelly, CEO, Clean Line Energy Partners; former head of development, Horizon Wind Energy
April 13, 2009 – "A Case Study of Biological Invasion: a Global Threat to Biodiversity" with Daniel Simberloff, Institute for Biological Invasions, University of Tennessee, Knoxville
April 29, 2009 – "Heat Stroke: Nature in an Age of Global Warming" Anthony Barnosky, Professor, Department of Integrative Biology, University of California-Berkeley
April 7, 2009 –"Southern New England's Future Thirst: An Approach to Sustainability" Tom Baron, Former Director of Operations, Massachusetts Water Resources Authority Water System
April 3, 2009 – "Sustainability in a Changing World: Concepts and Policy Strategies to Address Climate Change in Alaska" with Terry Chapin, Institute of Arctic Biology, University of Alaska, Fairbanks
