Agriculture Head And EPA Chief Appear At Senate Committee On Global Warming
Getty Images 2009-07-22 23:03:15
WASHINGTON - JULY 22: Director of the White House Office of Science and Technology John Holdren testifies at a hearing on Capitol Hill July 22, 2009 in Washington, DC. The hearing focused on the role of agriculture and forestry in global warming legislation. (Photo by Brendan Hoffman/Getty Images)
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