Academic Festival 2012 Keynote Address by Jeffrey D. Sachs at Teachers College

Earth Institute Director, Jeffrey Sachs, defines and explores the complexities and challenges of sustainable development at the Annual Academic Festival held at Teachers College, Columbia University in 2012.

Watch Jeffrey Sachs’ keynote address, which highlights the importance of being proactive about addressing the challenges we have never seen before.

http://blip.tv/teachers-college-columbia-university/academic-festival-2012-keynote-address-by-jeffrey-d-sachs-6107781