A potential solution to carbon-free flying is inching closer to reality.
Since the start of this year, small planes equipped with hydrogen fuel cells have made their first test flights over the U.S. West Coast and the English countryside. The aviation startups ZeroAvia and Universal Hydrogen now claim their novel aircraft will be ready to start flying commercially as early as 2025.
A new analysis suggests that, if the technology can scale, it could sharply reduce greenhouse gas emissions for certain planes — and potentially lay the groundwork for decarbonizing broader swaths of the global aviation market.
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