February 22, 2013How Airplanes Heat the PlanetJohn Metcalfe, Atlantic
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![]() NASA When looking for evidence of humanity's hand in climate change, it's easy to spot the belchers of greenhouse gases sitting at eye level: snaking rivers of bumper-to-bumper cars, say, or vapor-shrouded smokestacks at power plants. Few people tend to look straight up, though, which if you had done it last Friday would've yielded a jittering mess of billowy streaks: TAGGED: airplanes, global warming RECOMMENDED ARTICLES
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