American Airlines published the first findings in a study by Google Research and Breakthrough Energy on contrail avoidance to help understand how to reduce air travel’s environmental impact this week.

Contrails are created by jet engines cruising at altitude. Is it a cause for worry? Not in the way you might think. When you purchase through links on our site, we may earn an affiliate commission.

Aviation's climate impact is partly due to contrails—condensation that a plane streaks across the sky when it flies through icy and humid layers of the atmosphere. Contrails trap heat that radiates ...

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 ...

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 ...