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by subnaught 3217 days ago
>That said, relying on a fuel source that requires CO2 as >input seems just as potentially destabilizing to the global >carbon cycle as relying on a fuel source that produces CO2 >as byproduct.

Not really. Using CO2 to generate a fuel which then liberates CO2 when it is consumed ends up being CO2-neutral, which is exactly the way to go.