Charlie Brown, President of the World Alliance for Mercury Free Dentistry and the National Counsel for Consumers for Dental Choice, delivers opening statement before the United Nations Environmental Program on June 7th, 2010. The fact that mercury is the largest ingredient in dental amalgam was revealed and recorded before the nations of the world in the Plenary session at INC1, the first session of the Intergovernmental Negotiating Committee to prepare a global legally binding instrument on mercury by 2013.