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Brian Greene

Theoretical Physicist

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

Richard Dawkins

Evolutionary Biologist

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Richard Dawkins | October 5, 2010 | Wortham Center | The Progressive Forum

Tim Flannery

Scientist, Naturalist, Author

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Tim Flannery | March 19, 2007 | Wortham Center | The Progressive Forum

Edward O. Wilson

Biologist, Conservationist, Theorist

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Edward O. Wilson | September 27, 2006 | Wortham Center | The Progressive Forum

Ken Burns

Acclaimed Documentary Filmmaker

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

Sylvia Earle

Oceanographer

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Sylvia Earle | April 5, 2011 | Wortham Center, Houston | The Progressive Forum

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