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Arun Majumdar, the director of Advanced Research Projects Agency-Energy, lays out the audacious goals and the tough budgetary realities of the U.S. Department of Energy unit that's best known by its acronym ARPA-E.
by Adam Aston
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The Empire State Building, the New York City icon undergoing the largest green retrofit in the U.S., is purchasing wind power credits for 100 percent of its energy use in a deal that parties say provides more proof that sustainability can be achieved without paying premium.<br />