Dr. John Holdren

September 27, 2012 - NREL Director, Dr. Dan Arvizu, left and Dr. John Holdren, senior advisor to President Barack Obama, Assistant to the President for Science and Technology, Director of the White House Office of Science and Technology Policy, tour the Biomass Surface Characterization Laboratory at NREL. (Photo by Dennis Schroeder / NREL)
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Last Modified: 2012-10-17 13:31:14
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Photo by Dennis Schroeder / NREL - http://www.nrel.gov/data/pix/searchpix.php?getrec=22301&display_type=verbose&search_reverse=1
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