BHP Americas boss says miners must make copper greener

Copper producers must collectively raise their game to improve the metal’s ethical and green credentials as ageing mines require more water and energy to produce the same amount of metal, one of BHP’s most senior executives said on Friday.

Many in the industry have emphasised the importance of copper in the quest for a lower carbon economy as its properties as an electricity conductor hand it a leading role in any shift to electric vehicles and a modernised grid.