Aviation is one of the fastest growing sectors of greenhouse gas emissions. But so far, there are no commercially operated electric planes that could turn that back. CNBC looks into how that could soon change, but that could come with its own dystopian future of urban air taxis and more commuter flight travel.

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Stephen is an urban planner with a passion for sustainable, livable, and diverse cities. He is especially interested in how policies, regulations, and programs can promote positive outcomes for communities. Stephen lives in Kenmore and primarily covers land use and transportation issues for The Urbanist.

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hydrobread

I think Hydrogen replacing jet fuel is more practical since it has a comparable energy density, and it’s relatively easy to produce using zero emission energy sources. Batteries just won’t have the energy density anytime soon, if ever.

RDPence

You said it better than I ~ batteries with sufficient capacity to propel an airliner any significant distance are just too heavy.