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<iframe width="640" height="360" frameborder="0" webkitallowfullscreen="webkitallowfullscreen" allowfullscreen="allowfullscreen" mozallowfullscreen="mozallowfullscreen" src="//www.youtube.com/embed/VcSX4ytEfcE?feature=player_embedded"></iframe> http://www.theatlantic.com/video/index/247769/visualizing-7-billion-in-how-did-we-get-so-big-so-fast/

Visualizing 7 Billion in 'How Did We Get So Big So Fast?'

Nov 02, 2011 |
Video by NPR

NPR's clever illustration of how the world's population grew to seven billion people

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Author: Kasia Cieplak-Mayr von Baldegg

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