Eli Meir Kaplan/Wonderful Machine for EcoHome..Sam Rashkin poses for a portrait on Monday, November 14, 2011 in front of a chalkboard with technical information about energy efficiency and with his book, "Retooling the U.S. Housing Industry," in his office at the Department of Energy in Washington, DC.
Credit: Eli Meir Kaplan

Eli Meir Kaplan/Wonderful Machine for EcoHome..Sam Rashkin poses for a portrait on Monday, November 14, 2011 in front of a chalkboard with technical information about energy efficiency and with his book, "Retooling the U.S. Housing Industry," in his office at the Department of Energy in Washington, DC.