I like travel & have been a passenger on many commercial airline flights. My reference to “bluer/blue-er” flights in this post means better for air quality. Aiming for constant improvement there. Following are some starter thoughts after research, about Sustainable Aviation Fuel (“SAF”) & particularly today Bio-Aviation Fuel(s) (“BAF”) (SAF/BAF: alternatives to electrofuels). Your own thinking & conclusions are also necessary.
Per the International Energy Agency, aviation/flights currently create ~ 2% of carbon pollution. & That is “more than some countries produce”. Let’s reduce the amount. There are active initiatives for keeping the sky’s air cleaner; to replace legacy fossil fuels as jet fuel. Using sustainable aviation biofuels could help decarbonize air travel. & Lower the carbon footprint of older aircraft types. Wikipedia notes: “An aviation biofuel (also known as bio-jet fuel or bio-aviation fuel [“BAF”]) is a biofuel used to power aircraft & [can be] a sustainable aviation fuel”. Following are a few beginner notes on biofuel(s) & progress.
Airlines/entities that I read are actively investing/experimenting with alternatives include: already using some sustainable aviation fuel: Lufthansa. Have 2030 targets to use SAF: Air France & KLM. & Research & experimentation by: Virgin/Virgin Atlantic, & Airbus (plane manufacturers; including, is reported: progress in hydrogen-powered flight). & Air Company advises (on their website) that it is “directly turning CO2 from the atmosphere into sustainable aviation fuel”.