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Brian Greene

Theoretical Physicist

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Brian Greene | September 29, 2009 | Wortham Center | The Progressive Forum

Lester Brown

Founder: Earth Policy Institute

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

Ken Robinson

Creativity Expert

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

Gail Collins

New York Times Columnist

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Gail Collins | June 26, 2012 | Wortham Center | The Progressive Forum

James Hansen

Director, NASA Goddard Institute for Space Studies

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James Hansen | December 7, 2009 | Wortham Center | The Progressive Forum

Michelle Alexander

Civil Rights Advocate, Legal Scholar

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Michelle Alexander | October 2, 2012 | Wortham Center | The Progressive Forum

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