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Bill McKibben at the University of Michigan Hill Auditorium
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Bill McKibben at the University of Michigan Hill Auditorium
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Bill McKibben at the University of Michigan Hill Auditorium
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SEAS Professor Greg Keolian at the University of Michigan Hill Auditorium
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SEAS Dean, Jonathan Overpeck
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Bill McKibben at the University of Michigan Hill Auditorium
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Bill McKibben speaking with University of Michigan students
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Bill McKibben speaking with University of Michigan students
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Student asking Bill McKibben a question at Hill Auditorium
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Bill McKibben with Kristen Sanchez, Ecology and Evolutionary Biology Student