• keepthepace@tarte.nuage-libre.fr
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    1 month ago

    That’s a whole different debate. I tend to agree that they are less ideal, that their proponents say, but they are actually renewable. They don’t add durably CO2 in the atmosphere from fossil sources. It is a very different thing. The CO2 they emit is part of a cycle. Ideally, that’s also a type of emission that we cut, but it is possible to include them in a sustainable society.

    • skibidi@lemmy.world
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      1 month ago

      Biofuel is a dead-end technology. Synthetic fuels from direct air capture of CO2 are about 3X as efficient in terms of energy in -> energy in fuel, while also avoiding wasting all the extra nutrients (phosphorus, potassium, nitrogen - some of which are scarce) needed for the plant to grow that give nothing in terms of energy storage and must be recaptured.

      A bunch of solar panels and some direct air -> methanol plants uses far less land than corn fields for bioethanol, while also providing easy avenues to switch energy from feeding the grid to filling the tanks depending on conditions.

    • Jake Farm@sopuli.xyz
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      1 month ago

      CO2 is not the only emission and pollution in the high atmosphere is even more damaging than on the ground.

        • Jake Farm@sopuli.xyz
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          1 month ago

          Well incomplete combustion, which is unavoidable, produces carbon monoxide, VOCs, soot, and unburned fuel. All which would be dumped into the high atmosphere.

            • Jake Farm@sopuli.xyz
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              1 month ago

              Unburned fuel is an order of magnitude worse for the atmosphere than CO2. Plus you think only humans are poisoned by these things?

              • RockBottom@feddit.org
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                1 month ago

                What does unburned fuel do to the atmosphere? And is coal, gas and oil in the ground harmful (being unburned fuel)?