Add Yahoo as a preferred source to see more of our stories on Google. Airlines have tamped down on carbon emissions by flying planes at higher altitudes. But this comes at a cost: the higher-flying ...

Contrails - those lines of wispy white clouds that follow some jets - may not be so harmless. Airlines and scientists are coming to a consensus that the water vapor trails created by airplanes at high ...

In the skies over Virginia it is common to see contrails, cloud-like strips of condensed water left behind by aircraft at high altitude. Some dissipate within minutes, but depending on the weather or ...

For decades, people believed that plane contrails are chemicals being secretly released into the atmosphere. Reality is ...

Contrails — those lines of wispy white clouds that follow some jets — may not be so harmless. Airlines and scientists are coming to a consensus that the water vapor trails created by airplanes at high ...

Add Yahoo as a preferred source to see more of our stories on Google. "A contrail could form and then just dissipate, but the contrails that persist can be very warming," Jill Blickstein, vice ...

Despite conspiracy theories about so-called chemtrails, there’s no evidence that the white plumes seen trailing from high-flying airplanes are part of a secret government program to spray toxic ...

When it comes to vehicles that have a serious impact on the environment, we all immediately think of gas-burning cars and trucks, but passenger aircraft can have a significant impact on the ...

Of the varied conspiracy theories regarding contrails – you know, chemtrails – one stands out for being especially wrong: the belief that the plane-made clouds are chemicals the government is secretly ...

On a clear day, with the right weather conditions, a portion of the sky busy with commercial flights can become riddled with contrails, the wispy ice clouds that form as jet aircraft fly by. They ...

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