Have you ever looked up at the sky and seen those white lines streaming out of an airplane and wondered what they were?

According to a comprehensive modeling study, the climate benefits of contrail avoidance depend on speed, not perfection ...

I would like to respond to a letter by Wendy Connor regarding aircraft contrails. This notion about geo-engineering, mind-control chemicals being sprayed, etc. is the result of Idaho's notoriously bad ...

Four research figures show how contrails appear in two satellite views (left) and two photographs taken from the MIT Green Building. Aviation’s climate impact is partly due to contrails — condensation ...

A crazy cold week in Florida brings starker contrails. But it's just winter conspiring against us, not the feds trying to change the weather.

If you look up at the sky on a clear day, chances are you'll notice thin, white clouds—also known as contrails—following behind airplanes. Subscribe to our newsletter for the latest sci-tech news ...

Avoiding contrail-inducing areas by rerouting flights is too time consuming for use in regular airline operations, German study concludes. Graham leads Aviation Week's coverage of technology, focusing ...