ZeroAvia has flown what the aviation company claims is the largest aircraft yet to be run on a zero-emissions hydrogen-electric engine, testing a 19-seater plane over the skies of England. More
UK aviation company Hybrid Air Vehicles has updated its "flying bum" Airlander 10 hybrid airship concept with a lower-carbon version featuring electric motors powered by hydrogen fuel cells. More
Dezeen promotion: Hyundai's first hydrogen-powered SUV – featured in the brand campaign Because of You – is a "sublimely futuristic" vehicle that purifies air rather than pollutes it. More
The world's first zero-emissions passenger trains powered by fuel cells are set to go into service in Germany. More