Sustainability
How lifecycle accounting changes the SAF emissions claim
Sustainable aviation fuel is assessed across its supply chain, not only at the aircraft exhaust.
Desk
Sustainability
Fuel, climate science and operational measures affecting aviation’s environmental transition.
Sustainability
SAF book-and-claim: how an environmental attribute travels without the fuel
Physical sustainable aviation fuel can enter one airport while its verified emissions benefit is assigned to a buyer elsewhere.
Sustainability
Contrail forecasting: the next layer of climate-aware flight planning
Some persistent contrails form only in cold, ice-supersaturated air, creating an opportunity to test small altitude changes.
Sustainability
Sustainable aviation fuel: the economics behind the promise
SAF can work within today’s aircraft and fuel systems, but supply, feedstocks and price determine how quickly it scales.
Sustainability
Comparing aviation climate claims
Use the full boundary
Aircraft fuel burn, lifecycle emissions from fuel production and non-CO₂ effects answer different questions. A lower lifecycle figure for a fuel does not mean a flight has no exhaust emissions.
Check the accounting
For sustainable aviation fuel claims, look for the feedstock, certification, lifecycle method and safeguards against double counting. Fleet renewal and operational efficiency should be evaluated against a clear baseline.