UK, Google Shift Hundreds of Flights by Up to 2,000 Feet in £5 Million Contrail Trial
Updated
Updated · The Seattle Times · Aug 18
UK, Google Shift Hundreds of Flights by Up to 2,000 Feet in £5 Million Contrail Trial
3 articles · Updated · The Seattle Times · Aug 18
Summary
Hundreds of commercial flights crossing the northeastern Atlantic will be asked over the next two winters to make altitude changes of up to 2,000 feet to avoid contrail-forming zones.
Google’s AI forecasts will identify cold, humid air where engine soot can seed heat-trapping ice clouds, letting controllers direct only 1% to 5% of roughly 10,000 flights in Shanwick airspace to deviate.
The 30-month Operation Blue Skies program will run on 20 to 40 lower-traffic days each winter, testing whether small, standard operational changes can cut contrails across an entire flight corridor rather than on single airlines.
Shanwick is a major Europe-North America gateway and a winter contrail hot spot; modeling suggests the airspace produces about 5% of global contrail warming, while contrails overall account for 1% to 2% of Earth’s warming.
The UK government is funding more than half of the £5 million ($6.76 million) study, which officials and researchers say could become a blueprint for similar airspace-scale climate measures elsewhere.
As the 2026 winter trials begin, how will air traffic controllers balance safety and fuel costs while testing AI-driven climate interventions over the Atlantic?
Could shifting flight paths by just 2,000 feet to avoid contrails unintentionally trigger worse climate impacts if AI predictions miss the mark?