Jeffrey D. Sachs, professor of sustainable development and professor of health policy and management at Columbia University, is director of Columbia’s Center for Sustainable Development and the UN Sustainable Development Solutions Network. He has served as special adviser to three UN secretaries-general. His books include The End of Poverty, CommonWealth, The Age of Sustainable Development, Building the New American Economy and, most recently, A New Foreign Policy: Beyond American Exceptionalism.

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