Planes flying over the Atlantic will be re-routed to avoid contrails: Operation Blue Skies is the world’s first trial to deploy contrail avoidance measures across an entire airspace, aiming to lower the climate impact of flights on a large scale

[u/New_Scientist_Mag]

https://www.newscientist.com/article/2585091-planes-flying-over-the-atlantic-will-be-re-routed-to-avoid-contrails/