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Steel is very problematic. 90% comes from China. Proven reserves of iron will run out at some point and we'll need to find new ones. Smelting uses coal. Iron mi
by jhp123 4y ago
Steel is very problematic. 90% comes from China. Proven reserves of iron will run out at some point and we'll need to find new ones. Smelting uses coal. Iron mining is environmentally destructive.
- _hypx 4y agoIron is one of the most common elements in the Earth's crust. It is not going to run out.
- jhp123 4y agoAmount in the crust is hardly relevant. After all there are trillions of tons of lithium etc. in the Earth's crust. Transition to a "hydrogen economy" would put unprecedented demand on existing sources. It's not realistic.
- _hypx 4y agoHydrogen is also one of the most common elements in the Earth's crust. Hence why it will never run out. It is very relevant.