HONG KONG, April 25, 2015 — In the session "Perspective Panel," speakers Benjamin R. Barber, Christiana Figueres, Christine Loh, Aromar Revi, and Saskia Sassen discuss the emerging challenges for the world’s urban areas in a warming world, as well as the potential technological, social, and policy responses. Jessica Seddon chairs the conversation. (56 min., 58 sec.)

Fourth Nobel Laureates Symposium on Global Sustainability