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Because lots of mined metals come either from 3rd world countries like Congo with no environmental protection laws or are mined in few places like Russia where
by sydd 4y ago
Because lots of mined metals come either from 3rd world countries like Congo with no environmental protection laws or are mined in few places like Russia where a trade war can lead to shortages.
Hydro requires the most common mayerials like steel or concrete.
- pencilguin 4y agoAnd, not even concrete. But there are numerous other storage alternatives that also do not need any special materials. We don't know yet which ones will be cheapest.