Tim Carmichael, Executive Director of the Coalition for Clean Air, Tess Cacciatore, founder of the World Trust Organization, and John Quigley, Director of Earth Day in Los Angeles, broadcast live from the United Nation’s Johannesburg Earth Summit. Johannesburg Summit 2002 is the World Summit on Sustainable Development and will bring together tens of thousands of participants, including heads of State and Government, national delegates and leaders from non-governmental organizations, businesses and other major groups to focus on meeting difficult challenges, including improving people’s lives and conserving our natural resources.