this post was submitted on 08 Oct 2025
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What fuel will ships burn as they move toward net zero? (news.mongabay.com)
submitted 2 days ago by wolfyvegan@slrpnk.net to c/energy@slrpnk.net
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  • Spurred largely by pending global regulations, the race is on to develop low- and zero-carbon fuels for ships and scale up their use.
  • There are “bridge fuels” that could be used during a transition period or in a limited way for the long term, such as biofuels, and then there are options that are more sustainable at scale, such as green methanol and green ammonia.
  • Experts continue to debate the pros and cons of green methanol and green ammonia, which are generally seen as the best options in the medium to long term.
  • A net-zero framework for shipping that would drive the adoption of alternative fuels is coming up for a vote in mid-October at a meeting of the International Maritime Organization in London.

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[–] HalfEarthMedic@slrpnk.net 5 points 2 days ago* (last edited 2 days ago)

They don't really talk about using hydrogen directly, just as past of the process of producing other fuels. I assume it boils down to the fact that hydrogen requires all the infrastructure associated with high pressure storage and transport. Methanol/ammonia can be transported as liquid in much the same way as other liquid hydrocarbon fuels, you can carry it in a bucket if you needed to.