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Maximizing the Climate Co-Benefits of Sustainable Aviation Fuel via Targeted Allocation
The report proposes optimizing the limited supply of sustainable aviation fuel (SAF) by targeting its use at airports with the highest contrail and particulate matter (PM) impacts. Analysis of 16.6 million flights in 2024 reveals that 2% of flights generate 80% of contrail-related warming. In the U.S., JFK, LAX, and O'Hare are identified as primary targets, while Heathrow, Istanbul Airport, and Paris CDG are the top candidates in Europe. The study finds that a 50% SAF blend can reduce LTO particulate emissions by 26-28% and contrail-related warming by 30-40%. While airport-wide targeting is simplest, time-based and flight-based strategies are more fuel-efficient. Implementation faces logistical hurdles, particularly at airports using hydrant fuel systems, but the report suggests these can be overcome through policy incentives and infrastructure investment.
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Document type: Research paper