Mark  Muro and Teryn Norris

Mark Muro, left, is a fellow and director of policy at the Metropolitan Policy Program at the Brookings Institution. He is a co-author of the Brookings report, “Energy-Innovation Institutes: A Step toward America's Energy Sustainability.†Teryn Norris, right, is the former project director at the Breakthrough Institute, a Oakland, Calif.-based think tank that, among other issues, focuses on making the transition to a clean-energy economy. He is president and founder of Americans for Energy Leadership.