Location: Roone Arledge Auditorium, Alfred Lerner Hall, 2920 Broadway, New York, N.Y. 

This conference, held every two years by Columbia's Earth Institute, brings together innovative thinkers and leaders from many academic disciplines as well as media, government, public policy and business. This year's event- held simultaneously in Beijing, New Delhi, London and Nairobi- will be webcast with interactive features. For more information [1], and to register for the New York event, visit www.stateoftheplanet.org [2].