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> Is this worth it?

Maybe it is, maybe it isn't. But if you keep replacing links of the supply chain with green alternatives, then it must eventually reach a point where you come out ahead. Eventually the energy for building ships will come from renewable sources.

Trying to tackle everything at once on the other hand may lead to paralysis.

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I never thought about it like that before, makes sense. Thanks.

>diesel ship with solar panels and using the energy to supplement or replace the diesel engines might be a better use of resources?

Imagine having the sails be photovoltaic for them to become a dual-energy source themselves.

Plus you need more than two ships anyway, at least one for backup if not simultaneous return voyages.

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