Senate Environment Committee Hearing On Climate Change

Steven Chu, U.S. energy secretary, left, testifies at a hearing of the Senate Environment and Public Works Committee on global climate change with Ray LaHood, U.S. transportation secretary, left to right, Ken Salazar, U.S. secretary of the interior, Lisa Jackson, administrator of the Environmental Protection Agency, and Jon Wellinghoff, chairman of the Federal Energy Regulatory Commission, listening in Washington, D.C., U.S., on Tuesday, Oct. 27, 2009. Senator Barbara Boxer said legislation to limit greenhouse-gas emissions would make the U.S. a leader in clean energy, cut pollution and spark billions of dollars in private investment and job creation. Photographer: Andrew Harrer/Bloomberg