David Miller is a Canadian politician and the president and CEO of WWF Canada. He was the mayor of Toronto from 2003 to 2010 and chair of the C40 Cities Climate Leadership Group from 2008 to 2010. During his mayoralty, Toronto gained an international reputation for its environmental leadership, economic strength, and social integration. David continues to work with public and private boards and is the Future of Cities Global Fellow at NYU’s Polytechnic School of Engineering. In his former capacity as counsel, international business and sustainability, at Aird and Berlis LLP, he advised companies and organizations on issues relating to sustainable urban economies.