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All In

Bernie Sanders responds to his critics

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The Democratic presidential candidate has been called out of touch for asserting that climate change is the greatest threat to national security.Dec.08.2015

All In Climate Change

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  • Barrow, AK: The leading edge of climate change

    06:52
  • The Vanishing Island

    07:36
  • Farming through a drought

    07:12
  • Conundrums of the California drought

    05:42
  • The solar boom

    05:01

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