Some of the world’s biggest aviation companies, including Boeing and Airbus, are working on the next generation of planes. One big goal? Making air travel greener by cutting its carbon footprint. So, they're ditching traditional jet fuel in favor of other options, like hydrogen fuel cells, electricity from batteries, and “sustainable aviation fuels." That could mean major changes in how we fly and how much we pay to get to our destinations. WSJ’s Danny Lewis talks with Boeing, Airbus and others about how this push to change how planes are powered could shape the future of flight.

Further reading: 

The Most Valuable U.S. Power Company Is Making a Huge Bet on Hydrogen 

Electric Planes Could Soon Take Off, but They May Not Go Far 

Fossil-Fuel Veterans Find Next Act With Green Hydrogen 

United Airlines Creates Fund for Sustainable Aviation Fuel 

Airlines Push to Reduce Carbon Footprint With Greener Fuels 

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