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

By Kasia Cieplak-Mayr von Baldegg

NPR's clever illustration of how the world's population grew to seven billion people uses test tubes and colorful liquids. The video was produced by Adam Cole with cinematography by Maggie Starbard. 

For more videos by NPR, visit their YouTube channel.

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