Jeffrey Sachs, the charismatic director of the Columbia University Earth Institute, gave a moving speech last night at the Graduate School of Architecture, Planning, and Preservation on the environmental problems that are unique to our time. Sachs, free-market economist turned green evangelist and a special adviser to United Nations Secretary General Ban Ki-Moon, spoke on the objectives of the Institute: ending extreme poverty, maintaining the health of the ecosystem, promoting peace and shared prosperity, and advancing humanist aesthetics. Read More