Comments by "Bob thebomb" (@bobthebomb1596) on "Is hydrogen the future of flight?" video.

Doesn't have to be thorium based, but does need to be liquid fuelled.
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Agreed
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Nope. The US would not sell them helium.
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@rpbajb Ah yes, I agree with you. Renewable s will undoubtedly play a significant part in future electricity generation, however I believe that nuclear still has a place. Thorium is an option, but the technology behind it (liquid fuel, molten salt) is more significant. My guess is that availability will be the deciding factor when it comes to actual fuel choice.
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I would tend to agree. Convert aircraft to run on methane. Use waste methane or produce it using the excess (when generated) energy from renewable energy sources, molten salt nuclear reactors or algae. Methane is much easier to handle than hydrogen.
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Not if the hydrogen was generated from water in the first place. Might have to find a technology to increase the size of the water vapour though - cause the plane to "pee" as it flew along :)
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That's true enough. Now I am going to visualise vast solar powered airships sucking water and CO2 from the atmosphere and manufacturing hydrogen or methane for aviation fuel :D
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Agreed. Not an answer in itself, but why do we have to pitch our tents on one solution? Use ALL of the technologies available now and give ourselves time to decide which is the best long-term solution.
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@funkyzero Algae and bacteria based systems will have a part to play. Admittedly, they may be more useful in generating future plastics than fuel.
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@funkyzero My original comment was more general in its scope but I think we have similar approaches. If we are going to set CO2 targets then we have to use all available options to try to meet them. Battery tech, solar, hydrogen fuel cell etc are not going to meet the requirements of air transportation any time soon. Synthetic fossil fuel is the only viable option available now. We do need to standardise on a fuel, but the route to synthesise it does not have to be fixed (yet). My preference would be methane as there are so many potential routes available to generate it.
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