Google Launches Operation Blue Skies Contrail Trial
Google and the UK government announced Operation Blue Skies on August 18, 2026, a trial that uses AI to help airliners avoid forming warming contrails. Everything below comes from Google's own announcement on blog.google, written by Paul Hodgson and Chaim Langermann.
Transcript
Google and the UK government are starting an AI trial to stop planes from forming warming contrails.
Contrails are clouds formed when water vapor condenses around soot in jet exhaust. Google says they cause roughly one third of aviation's climate impact. Google is launching Operation Blue Skies.
Google says Shanwick airspace is about five percent of global contrail warming. Ten thousand flights cross it yearly, and the thirty month trial will slightly reroute a small share.
This is a trial, not a result. Imperial College London and Cambridge will independently verify the climate impact. Google UK contributes one point four million pounds in kind.
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Sources
Every claim in this video comes from the top ranking coverage of this topic. The claims and where each one came from:
- These are clouds created when water vapor condenses around soot particles in jet exhaust.(Google official announcement, Operation Blue Skies: Reducing aviation climate impact with AI)
- While they may seem harmless, these warming contrails account for roughly one third of aviation's total climate impact.(Google official announcement, Operation Blue Skies: Reducing aviation climate impact with AI)
- We're launching Operation Blue Skies, the world's first state-backed trial to avoid contrails at the scale of an entire oceanic airspace.(Google official announcement, Operation Blue Skies: Reducing aviation climate impact with AI)
- Operation Blue Skies will operate within the eastern half of the North Atlantic corridor, Shanwick airspace, which accounts for approximately 5% of global contrail warming.(Google official announcement, Operation Blue Skies: Reducing aviation climate impact with AI)
- The 30 month program consists of two operational trials, each lasting approximately four months.(Google official announcement, Operation Blue Skies: Reducing aviation climate impact with AI)
- Around 10,000 flights, originating from hundreds of cities, will pass through Shanwick airspace during trial hours each year and a small percentage of these flights that would otherwise pass through contrail-sensitive airspace will be slightly deviated.(Google official announcement, Operation Blue Skies: Reducing aviation climate impact with AI)
- Imperial College London & University of Cambridge: Evaluating trial outcomes and providing independent verification of climate impact.(Google official announcement, Operation Blue Skies: Reducing aviation climate impact with AI)
- Google UK is participating on a pro-bono basis, contributing 1.4 million pounds in-kind through AI research expertise, engineering time, and high-performance computing infrastructure to advance open climate science.(Google official announcement, Operation Blue Skies: Reducing aviation climate impact with AI)
- Operation Blue Skies programme is co-funded by its industry partners and the Department for Transport (DfT) through the ATI Programme.(Google official announcement, Operation Blue Skies: Reducing aviation climate impact with AI)