Airbus has revealed that it is developing a hydrogen-powered fuel cell engine. The propulsion system is being considered as one of the potential solut.
Green hydrogen refers to hydrogen generated by renewable energy or from low-carbon power and has significantly lower carbon emissions than grey hydrogen which is derived from fossil fuels.
Airbus is developing fuel cell-powered airplanes. It will test the system on an A380 test plane, though the tech may end up more common on propeller planes