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 ...

Jet contrails are heat-trapping artificial clouds whose warming effect may rival the impact of all CO2 released by aviation ...

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 ...

More accurate prediction methods could help aviation mitigate the climate impact of contrails.,,,European Commission ...

The white streaks that sometimes trail behind airplanes have long been a familiar sight, and scientists say they are largely frozen water vapor — not evidence of a secret chemical spraying operation.

Add Yahoo as a preferred source to see more of our stories on Google. Contrails — the white line-shaped clouds left behind by planes — pose a particular problem as they are able to trap heat. Julian ...

Aviation's climate impact extends beyond carbon dioxide emissions. A new international study, involving researchers from Chalmers University of Technology and the University of Gothenburg, reveals ...

This activity was supported by a contract between the National Academy of Sciences and the National Aeronautics and Space Administration. Any opinions, findings, conclusions, or recommendations ...

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 ...

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 ...