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Steel is fine too; the crust of the earth is about 5% iron, so it's not like we're going to run out of it. Current steel production is terribly high in emission
by jabl 6y ago
Steel is fine too; the crust of the earth is about 5% iron, so it's not like we're going to run out of it. Current steel production is terribly high in emissions though, but e.g. hydrogen reduction as is being done by the HYBRIT project in Sweden show the way how to fix that.
- corty 6y agoEach of concrete, steel, traffic will double our energy consumption. So if you want to do those from renewables, we will need to quadruple production, yet we struggle with providing even the current level of electricity from renewables. Green steel, concrete or traffic from hydrogen is a far-out pipedream for quite some time.