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What do global problems cost us? Thoughts from Bjorn Lomborg

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Published on Nov 12, 2013

In a follow up to his 2005 TED Talk, Bjorn Lomborg explores the very big -- and very expensive -- problems that have been facing humanity for the past 100 years. For further explanation, check out the TED Blog's Q&A with Lomborg here: [http://wp.me/p10512-lK7]

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