This news release from the National Academies reviews findings on the challenges and opportunities for a Hydrogen Economy. According to the report, "A transition to hydrogen as a major fuel in the next 50 years could significantly change the U.S. energy economy, reducing air emissions and expanding domestic energy resources, but technical, economic, and infrastructure barriers need to be overcome." A link to the full report online includes chapters on: A Framework for Thinking About the Hydrogen Economy, The Demand Side: Hydrogen End-Use Technologies, Transportation, Distribution, and Storage of Hydrogen, Supply Chains for Hydrogen and Estimated Costs of Hydrogen Supply, Implications of a Transition to Hydrogen in Vehicles for the U.S. Energy System, Carbon Capture and Storage, Hydrogen Production Technologies, and Crosscutting Issues. The Executive Summary includes some implications for policy. This site is also reviewed in the February 27, 2004 _NSDL MET Report_.