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The bright future of solar thermal powered factories
https://www.lowtechmagazine.com/2011/07/solar-powered-factories.html #LowTechMagazine #SolarPower #industry
The 100 companies responsible for 71% of CO2 emissions largely emit through fossil fuel use. https://toot.cafe/@baldur/100866134010607239 (i'd be remiss to not mention we use some of the products)
Don't know about steel, but iron from ores could be done at lower temperatures. https://mastodon.nl/@jasper/100939249979980069
Although it takes kindah long, and somewhat assumes it doesn't immediately oxidize since it's so powdered.. Maybe if compressed while still in H2 it will weld and be more of a single chunk..