It will be a tough challenge to make hydrogen-powered commercial aviation take off before 2050, says Christopher Raymond of Boeing.
In the future, we may be able to fly on a fuel that is extracted from the atmosphere itself. Flying on air may work, but the challenges are many.
Hydrogen-electric aircraft maker ZeroAvia and Shell have joined forces to operate demonstration flights using gaseous hydrogen to and from Rotterdam.
Airbus has found an engine developer for its zero-emission hydrogen-powered aircraft, to be launched on the market by around 2035.
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