This talk was given on April 22, 2010 as the Earth Day Colloquium, sponsored by the MIT Energy Initiative and the United Technologies Corporation. - About the Speaker - William McDonough is an internationally renowned designer and one of the primary proponents and shapers of what he and his partners call 'The Next Industrial Revolution.' Time magazine recognized him in 1999 as a 'Hero for the Planet', stating that "his utopianism is grounded in a unified philosophy that-in demonstrable and practical ways-is changing the design of the world." Time Magazine again recognized Mr. McDonough and Michael Braungart as "Heroes of the Environment" in October 2007. In 1996, Mr. McDonough received the Presidential Award for Sustainable Development, the nation’s highest environmental honor; and in 2003 earned the U.S. EPA Presidential Green Chemistry Challenge Award. In 2004 he received the National Design Award for exemplary achievement in the field of environmental design. In October 2007, Mr. McDonough was elected an International Fellow of the Royal Institute of British Architects.