Deep sea mining to help make electric vehicles

As the world begins to move away from petrol and diesel-power cars, there are questions over how the metals needed for batteries in electric vehicles will be sourced.

One possibility is to mine the deep ocean floor. A number of companies are lining up to exploit the minerals found there, but campaigners warn it could have a disastrous impact on the marine environment.

The BBC’s Chief Environment correspondent, Justin Rowlatt, reports.

Filming: Sam Farmar

Edited by : Emily Brooks

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