Boeing says it will begin delivering commercial airplanes capable of flying on 100% biofuel by 2030, requiring jet systems advances, improved fuel-blending requirements, and safety certification by global regulators. Commercial aviation is responsible for approximately 2% of global carbon emissions (and 12% of total transport emissions), and given the 20 year service life of aircraft, efficiency improvements must be locked in before production. 

Boeing staged the world’s first commercial flight using 100% biofuel on a FedEx Corp 777 freighter in 2018, and coupled with reducing carbon emissions through weight and drag reduction on new aircraft, aircraft efficiency is expected to continuously improve.