Why societies collapse | Jared Diamond
发布时间 2008-10-28 17:02:05 来源
摘要
http://www.ted.com Why do societies fail? With lessons from the Norse of Iron Age Greenland, deforested Easter Island and present-day Montana, Jared Diamond talks about the signs that collapse is near, and how -- if we see it in time -- we can prevent it.
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