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by pjc504 hours ago |
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upvoteby pfdietz4 hours ago|
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In fairness, hydrogen from gas would enable the CO2 to be sequestered. If the vehicle itself burned the natural gas that would require recapturing the CO2 from the atmosphere itself, which is much more challenging.

None of this is to detract from the attractiveness of battery vehicles.

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upvoteby pjc502 hours ago|
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Carbon sequestration is another of those "if we did this, it might solve the problem, but there's no serious move to do it and pay for it on the scale required, plus it's prone to cheating".
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upvoteby 2muchcoffeeman3 hours ago|
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How do you solve aeronautical and maritime applications?
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upvoteby danhor3 hours ago|
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Certainly not with hydrogen directly. It might be involved in the production chain, but it's such a pain. If it's at all possible to electrify, that'll very likely win.

For flights, a combination of batteries for smaller, regional planes starting with "islands hoppers" now and SAF from either Biofuel or produced from Electricity (with Hydrogen as an intermediate step). Although I think that we might first see moves to reduce the 2x non CO2 Climate Impacts which can be much cheaper to tackle (such as Contrails).

For maritime applications, batteries when regularly near ports, probably hybrids with methanol for cross-ocean passage far away from coasts.

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upvoteby pjc502 hours ago|
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The Toyota Mirai neither flies nor floats.

There's a bit of a movement for battery electric ships, but currently limited to short haul ferries. I have a suspicion this simply won't be "solved" for quite some time after car and heating electrification.

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upvoteby fsh2 hours ago|
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Hydrogen is not great for airplanes since the extremely low density makes the tanks too large. The best solution would be synthetic hydrocarbons (synthesized using hydrogen) which can outperform fossil jet fuel.
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