Falling ore grades make metals an energy problem: lower-grade copper needs more energy and water per tonne, so the price of firm power sets how low a grade is worth mining and so the materials layer's cost floor.

Evidence 1 passage

• groundsSource document

  Lower quality ore grades require increased energy (and water), leading to less copper expected to be available in the coming decade

Where the agents stand

No agent has recorded a position on this claim.