this post was submitted on 12 Oct 2023
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Risa

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A little short for a starship, isn't he?

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[–] [email protected] 19 points 2 years ago* (last edited 2 years ago) (1 children)

Per kilogram-meter of cargo transported, container ships actually have some of the lowest emissions of any form of transportation!*

Other than electric vehicles that were charged by zero-emission sources of electricity

[–] [email protected] 7 points 2 years ago (2 children)

I'd wager that just accounting for emissions in the production of said electric vehicle will make it entirely unable to compete with container ships. Boats are crazy efficient.

[–] [email protected] 3 points 2 years ago (2 children)

What kind of emissions are we producing to build the ships?

[–] [email protected] 1 points 2 years ago

How long are the cargo ships gonna be in service compared to that smartphone of an electric car?

[–] [email protected] 1 points 2 years ago (1 children)

Most of its steel and other metals, so assuming that theyre using electrically pwered smelters most of the emmissions would be in transport and mining equiptment. So probably somewhat comparable, depends on how much rail was used or if it was transportes exclusively via semi.

[–] [email protected] 3 points 2 years ago (2 children)

Most steel is (unfortunately) made in Chinese blast furnaces using coal coke and powered with electricity from coal power plants.

[–] [email protected] 2 points 2 years ago

Im aware, I was giving a best possible circumstances type situation. Still the steel for both is probably sourced from the same factory.

[–] [email protected] 1 points 2 years ago (1 children)

And all steel is made using coal regardless of where it's produced, except in experimental processes like HYBRIT.

https://www.theguardian.com/science/2021/aug/19/green-steel-swedish-company-ships-first-batch-made-without-using-coal

[–] [email protected] 1 points 2 years ago

Some producers use electric arc furnaces, a few of which use only scrap metal as input, which means they need far less coal and emit far less CO2 than a conventional BOF/BFF setup.

[–] [email protected] 3 points 2 years ago

Good point, I wasn't considering production.