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

More Answers from Past Speakers

Rachel Maddow

TV Host, Author

Rachel Maddow | March 10, 2013 | Wortham Center | The Progressive Forum

Nancy Pelosi

Speaker of the U. S. House of Representatives

Nancy Pelosi | June 12, 2009 | Wortham Center | The Progressive Forum

Ken Burns

Acclaimed Documentary Filmmaker

Ken Burns | November 13, 2007 | Wortham Center | The Progressive Forum

Lester Brown

Founder: Earth Policy Institute

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

Arianna Huffington

Founder, The Huffington Post

Arianna Huffington | September 15, 2010 | Wortham Center | The Progressive Forum

Gloria Steinem

Feminist, Activist, Writer

Gloria Steinem | September 17, 2007 | Wortham Center | The Progressive Forum