Steven F. Leer (left), president and CEO of Arch Coal, and Chancellor Mark S. Wrighton listen as Maxine L. Savitz, Ph.D., vice president of the National Academy of Engineering and a member of the President’s Council of Advisors on Science and Technology, answers a question from the audience at America’s Energy Future, a symposium to discuss the National Research Council’s roadmap for the country’s energy future. The symposium was held Nov. 2 in Simon Hall and was sponsored by the International Center for Advanced Renewable Energy and Sustainability (I-CARES). Wrighton delivered the keynote address summarizing the council’s report.