Jeffrey Sachs: Economentalist


What's an ambitious economist to do if he has already counseled countries from Bolivia to Poland through rough financial times, advised the Pope on globalization and helped launch a global fund to fight AIDS, TB and malaria? For Jeffrey Sachs, 49, the logical next act is to help save the entire planet from what he warns could be an "environmental catastrophe" caused by climate change and the destruction of wildlife. In 2002, Sachs abruptly ended a 22-year Harvard career to head Columbia University's Earth Institute, which has 19 research divisions. He has also become a top adviser to the United Nations...

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