INFORMATIONAL Oct 27, 2026 SAF's Uncomfortable Math: Availability, Price Premiums, Mandates, and Who Actually Pays Sustainable aviation fuel is expected to carry the industry most of the way to net zero by 2050. It remains the only real substitute for fossil jet fuel that can be used in today's aircraft without requiring major engine redesigns. Yet in 2026, SAF still made up just 0.8% of global jet fuel use, a sliver that nonetheless cost airlines billions of dollars to buy. Read More →