Sunday, November 3, 2013: Lester Brown, Breaking Ground: Lester Brown on the Future of Our Planet. A moderated discussion led by Suzanne Shaw, Director of Communication at the Union of Concerned Scientist.

Sunday, October 21, 2012: David Keith, Should we try climate risks by using planetary-scale climate engineering? Climate Change– Will We Need Geoengineering? What is it? What do we know about the potential risks and benefits?

Tuesday, January 24, 2012: Anne Kelly, The Climate Reality Project. A presentation and conversation on the current facts on Climate Change and meaningful steps that citizens can take.

Wednesday, December 14, 2011: Sunnye M. Collins, New England Aquarium, “Oh Canada!
Pipeline in Paradise?” A Visual, Poetic, and Humorous Meditation on the Pipeline Proposal through the Last, Intact, Coastal Temperate Rainforest in the World.

Sunday, December 4, 2011: Howard (Bud) Ris, President of NE Aquarium, “Climate Change and the Oceans –
What’s In Store for the Future?

Sunday, September 18, 2011: Dr. Aaron Bernstein, “Sustaining Life in a Climate Changing World: How Human Health Depends on Biodiversity”

August 29, 2010: Bill McKibben talks about his new book “Eaarth”

May 23, 2010: Lexington Green House Tour

April 29, 2010: Richard Heinberg speaks on “Global Warming, End of Oil, Perfect Storm”

October 25, 2008: Energy Savings Fair at Lexington High School

June 1, 2008: Dr. James Hansen, Director of NASA’S Goddard Institute for Space Studies at Columbia University in New York City and Dr. Mark Bowen, author of “Censoring Science: Inside the Political Attack on Dr. James Hansen and the Truth of Global Warming”

February 24, 2008: Lester Brown, President of Earth Policy Institute

October 21, 2007: Sunlight is Life! The Path Toward a Sustainable Future: a visual presentation on solar- and wind-powered buildings Steven Strong, President of Solar Design Associates in Harvard, Mass.

September 23, 2007: Life on a Carbon Diet: Improving our Lifestyles while Fighting Climate Change
Professor William Moomaw, The Fletcher School, Tufts University

March 3, 2007: Arctic Climate Change: Why it Should Concern Us by James McCarthy, Alexander Agassiz Professor of Biological Oceanography, Harvard University

January 23, 2007: Overcoming Public Complacency about Climate Change: Systems Thinking for Complex Policy Challenges by John Sterman, Director, MIT System Dynamics Group at the MIT Sloan School of Management

October 29, 2006: Global Warming and its effects on New England by Kevin Knobloch, Union of Concerned Scientists

September 24, 2006: Hurricanes and Global Warming Kerry Emanuel, Professor of atmospheric science at the Massachusetts Institute of Technology

May 21, 2006: Field Notes from a Catastrophe: Man, Nature, and Climate Change by Elizabeth Kolbert

April 30, 2006: The Global Warming Crisis and the importance of action at the local, state, and regional level with Seth Kaplan of the Conservation Law Foundation

April 29, 2006: Lexington Earth Day Celebration on the Visitor’s Center lawn in Lexington Center

April 6, 2006: Rescuing a Planet Under Stress and a Civilization in Trouble by Lester Brown, President, Earth Policy Institute

January 22, 2006: THIN ICE: Unlocking the Secrets of Climate in the World’s Highest Mountains by Mark Bowen, Ph.D.

October 16, 2005: Global Warming Demystified by Ted McIntyre