''There are a range of solutions that have significant potential to drive meaningful Scope 3 emission reductions. Two of them include sustainable aviation fuels (SAFs) and electric propulsion. SAFs are likely to be the best possible solution for reducing emissions in medium-to-long-haul flights, while electric propulsion could be the most feasible zero-emission solution for smaller aircraft and short-haul flights.'' https://www2.deloitte.com/us/en/insights/industry/aerospace-defense/decarbonizing-aerospace.html