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Eco-photos of the week: May 17-23

By: Devereaux Bell on Oct. 16, 2009, 11:22 p.m.
U.S. Secretary of Energy Stephen Chu (right) rides his bicycle to work after he attended a "Bike to Work Day"

Photo: Alex Wong/Getty Images

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Peddling secretary

U.S. Secretary of Energy Stephen Chu (right) rides his bicycle to work after he attended a "Bike to Work Day" event at Freedom Plaza in Washington, D.C. Thousands of people from the D.C. area rode their bicycles to promote an alternative means to save energy and to help to create a greener environment.