A View of China's Sooty Skies from an Airplane

Dino Grandoni

Sure, we knew that China has air pollution problems, but this photo getting attention on Reddit drives the point home. Reddit user hayzen77 posted a side-by-side comparison of his view across the wing of a plane he flew on from Australia (left) and to China (right). Though unknown factors like time of day could explain some of the difference (the photo originated on only-sometimes reliable Reddit), damn, do China's skies look polluted.

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Inevitably, Reddit's community are ready to make wisecracks: "The cool thing about places like Shanghai is that you don't need that sepia effect," one thread commenter writes.