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Tim Flannery

Scientist, Naturalist, Author

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Tim Flannery | March 19, 2007 | 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

Richard Leakey

Paleoanthropologist, Conservationist, Statesman

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Richard Leakey | October 28, 2010 | Wortham Center | The Progressive Forum

George Soros

Philanthropist and Financier

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George Soros | September 7, 2006 | Hobby Center | The Progressive Forum

Ayana Elizabeth Johnson

Leading Marine Biologist, Climate Policy Expert, Writer

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Sylvia Earle

Oceanographer

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

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