Aviation industry seeks to prove SAF can reduce contrail formation

A new Boeing ecoDemonstrator flight-test program to measure how sustainable aviation fuels (SAFs) affect non-CO2 emissions will add further data to previous studies which have suggested that cleaner-burning jet fuels could produce up to 70% fewer planet-warming contrails.

 https://runwaygirlnetwork.com/2023/10/prove-safs-can-reduce-contrail-ecodemonstrator/