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        "text": "A new UK trial is applying artificial intelligence to one of commercial flight's more overlooked environmental harms: the condensation trails planes leave behind. Nicknamed 'sky graffiti' for their visible streaks, these contrails form when hot aircraft exhaust meets cold, humid upper-atmosphere air, creating cirrus-like clouds that can linger for hours and trap heat in the Earth's atmosphere.",
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        "text": "Unlike carbon emissions, which warm the planet over long timescales, contrails produce a more immediate radiative effect. The trial hopes to reduce these trails by using AI to help aircraft steer clear of the atmospheric conditions most likely to generate them.",
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        "text": "While traditional flight planning prioritizes fuel efficiency and speed, this emerging approach adds climate impact as a variable, with minor altitude or route adjustments potentially preventing contrail formation. The effort places the UK among governments and industry looking for practical ways to reduce aviation's warming footprint, pending trial outcomes.",
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