Aviation turbine fuel (ATF) is made from crude oil. This petroleum fuel significantly contributes to the aviation industry's greenhouse gas emissions. Sustainable Aviation Fuel (SAF) provides an environmentally friendly option. Key differences include:   Emissions: SAF potentially reduces lifecycle greenhouse gases by 80% compared to ATF. Source materials: SAF is made from renewable or waste materials. Performance: Both fuels power jet engines without modifications, but current aircraft use SAF blends with Kerosene. The goal is to have 100% SAF-fueled planes.