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Commentary: Ship pollution visible from space

Wednesday, February 27, 2013

Forget the Great Wall of China and mighty Amazon River, NASA has posted an image on its Global Climate Change Website that shows global shipping routes can be seen from space because of the nitrogen oxides (NOx) emitted by ships traveling along them. “Just how much shipping contributes to overall NOx emissions remains an open question for scientists. Research suggests that shipping accounts for 15 to 30 percent of global NOx emissions; scientists are using satellite observations to...

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