Managing Director at the Consensus Building Institute and Associate Director of the MIT-Harvard Public Disputes Program, facilitates consensus building and mediates resolution of complex public and organizational issues internationally and in the United States. His areas of focus include economic development; human services; environment, energy and land use regulation and policy; and intergroup conflict. He also teaches negotiation, consensus building and mediation skills. He has authored numerous scholarly articles, consulting reports and negotiation simulations. He is a senior mediator on the rosters of the U.S. EPA and the U.S. Institute for Environmental Conflict Resolution, and a founding board ember of the Alliance for International Conflict Resolution.