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Visit Past Speaker Pages

Bill McKibben

Acclaimed Environmentalist

climate-movement-leader-bill-mckibben

Sylvia Earle

Oceanographer

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

Michelle Alexander

Civil Rights Advocate, Legal Scholar

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

Tim Flannery

Scientist, Naturalist, Author

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

Edward O. Wilson

Biologist, Conservationist, Theorist

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

Katharine Hayhoe

Leading Climate Scientist

Leading Climate Scientist Dr. Katharine Hayhoe | The Progressive Forum