As airlines test new routes and researchers refine models, contrails are shifting from an afterthought of flight to a potential tool for cutting the carbon footprint of aviation.

As Covid-19’s initial wave crested around the world, travel restrictions and a drop in passengers led to a record number of grounded flights in 2020. The air travel reduction cleared the skies of not ...

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 ...

Non-experts define contrails as condensation trails that form due to the steam left behind by aircraft and which take shape as linear clouds in the upper troposphere. These trails emerge at high ...

Contrails conjure a sense of something overwhelming and ineffable, as terrifying as it is beautiful. By Kate Folk I spend most days working from home, in my apartment in San Francisco’s Richmond ...