● Covered by 1 source · 1 reportMedium impact1 neutral
UK Trial Uses AI to Predict and Avoid Climate-Warming Aircraft Contrails
Key points
- £5 million UK trial, "Operation Blue Skies," launched.
- AI will predict contrail formation zones using satellite and flight data.
- Aircraft will adjust altitude by ~2,000ft to avoid these zones.
- Trial focuses on Shanwick Oceanic airspace, North Atlantic corridor.
AI to Tackle Contrail Warming
A new £5 million UK trial, named "Operation Blue Skies," has been launched to address the climate impact of aircraft contrails. The project will utilize artificial intelligence to forecast atmospheric conditions conducive to the formation of persistent contrails, which are icy clouds that trap heat in the Earth's atmosphere.
Project Collaboration and Scope
The 30-month initiative involves a collaboration between Google, the UK government, the Met Office, air traffic control provider NATS, and academic researchers. It will concentrate on the Shanwick Oceanic airspace in the eastern North Atlantic corridor, an area estimated to contribute approximately 5% of global contrail warming.
How Contrails Form and Their Impact
Contrails are formed when hot exhaust from aircraft engines mixes with cold, high-altitude air, creating ice crystals. While many dissipate quickly, certain cold and humid conditions allow them to persist and spread, forming clouds that prevent heat from escaping the Earth. Contrail warming is estimated to be responsible for about one-third of all aviation climate warming.
AI Prediction and Avoidance Strategy
Google will use satellite imagery and historical flight data to identify past contrail formations. This data will be combined with weather patterns to predict future contrail-forming conditions. The predictions will be sent to NATS, enabling air traffic controllers to direct pilots to avoid these specific areas. The avoidance maneuvers will primarily involve minor altitude changes, typically around 2,000 feet, a routine adjustment for pilots.
Implementation and Future Plans
The trial is designed to integrate with existing air traffic control procedures, minimizing disruption to flight operations. Testing is scheduled to occur during selected evenings and nights in the winters of 2026-2027. Passengers are unlikely to notice these altitude adjustments, as similar changes are already made to avoid turbulence and adverse weather.
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Reporting from
A new £5 million UK trial, "Operation Blue Skies," will use AI to predict areas where climate-warming contrails are likely to form, allowing aircraft to avoid them. This initiative aims to mitigate aviation's contribution to climate change by adjusting flight paths, primarily through minor altitude changes.