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Farewell retrospective of past speakers, closing night. 5:41 | More videos from Bill McKibben »

More Answers from Past Speakers

Joe Klein

Journalist, Columnist, Author

Joe Klein | April 12, 2007 | Wortham Center | The Progressive Forum

Alice Waters

Restaurateur, Author, Activist

Alice Waters | February 27, 2012 | Wortham Center | The Progressive Forum

Ken Robinson

Creativity Expert

Sir Ken Robinson | March 20, 2012 | Wortham Center | The Progressive Forum

Lester Brown

Founder: Earth Policy Institute

Lester Brown | April 28, 2009 | October 6, 2013 | The Progressive Forum

Sonia Sotomayor

Supreme Court Justice

Sonia Sotomayor | January 22, 2013 | Wortham Center | The Progressive Forum

Robert Redford

Actor, Director, Environmentalist

Robert Redford | March 27, 2008 | Wortham Center | The Progressive Forum