As the world begins to maneuver away from petrol and diesel-power automobiles, there are questions over how the metals wanted for batteries in electrical automobiles will likely be sourced.
One risk is to mine the deep ocean ground. Numerous firms are lining as much as exploit the minerals discovered there, however campaigners warn it may have a disastrous influence on the marine setting.
The BBC’s Chief Environment correspondent, Justin Rowlatt, studies.
Filming: Sam Farmar
Edited by : Emily Brooks