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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  1. 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.

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

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