Watch a Year's Worth of Carbon Dioxide Billow Around the Globe

This NASA visualization tracks 365 days of the planet's CO2 emissions. Called a "Nature Run," the visualization was created by a climate modeling program at NASA's Goddard Space Flight Center.

The video covers January 1st to December 31, 2006, and it clearly shows that much of the world's CO2 comes from the heavily populated northern hemisphere. Periodically, the southern half of the world flares up, because of seasonal forest fires in central Africa, for example.

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