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1 .This is Scientific American 60-Second Science. I'm Christopher Intagliata. Got a minute?
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2 .Commercial jets pump out some 700 million tons of CO2 a year, about two percent of global emissions.
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3 .That jet exhaust helps warm the planet, especially in the Arctic.
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4 .Which is especially unfortunate for future fliers.
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5 .Because climate change may stir up more turbulence over the North Atlantic, causing bumpier flights there.
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6 .That's according to a study in the journal Nature Climate Change.
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7 .Researchers used climate simulations to fast-forward to the year 2050.
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8 .They fed that future climate data to 21 turbulence-predicting algorithms,
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9 .focusing on a type called "clear air turbulence," which literally comes out of the blue,
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10 .pilots can't spot it, and neither can satellites or radar.
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11 .The models forecast that by mid-century, clear-air turbulence will be more violent,
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12 .and transatlantic flights will hit it twice as often, especially during the winter.
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13 .Beyond spilling drinks, severe clear-air turbulence can injure or kill passengers, and damage planes, too,
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14 .it once ripped an engine off a DC-8.
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15 .The researchers say airlines may have to fly more detours in the future to avoid it, a waste of time and fuel that ups emissions.
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16 .Which could mean higher ticket prices, and even less friendly skies.
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17 .Thanks for the minute, for Scientific American 60-Second Science. I'm Christopher Intagliata.
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