Most of us first spot them as children—the white lines in the blue sky that are the telltale sign of a flight overhead. Contrails are an instant visual reminder of air travel, and a source of much ...

Those white vapor trails crisscrossing the sky carry a hidden climate price tag comparable to the damage from jet fuel itself. Research from Chalmers University of Technology reveals that aviation ...

Add Yahoo as a preferred source to see more of our stories on Google. Here’s what you should know about contrails, according to an aviation meteorologist. pic4you/Getty Images If you’ve ever looked up ...

Some contrails can contribute to global warming. Contrails—pure ice clouds (“cirrus”) that form from aircraft exhaust under specific cold conditions—can trap heat in the atmosphere, sometimes creating ...

The challenge of addressing aviation’s non-carbon dioxide emissions is receiving greater attention, with the climatic impact associated with tell-tale signs in the sky coming under increased study.

A new study allays fears that rerouting flights to avoid forming climate-warming contrails could result in inadvertently making climate warming worse. Researchers from Sorbonne Universite and the ...

Ever wondered about those white streaks trailing planes across the sky? Experts explain how these contrails form and what every traveler should know about their impact on our planet. If you’ve ever ...

A new study allays fears that rerouting flights to avoid forming climate-warming contrails could result in inadvertently making climate warming worse. A new study allays fears that rerouting flights ...