Could you dig up the bottom of the ocean to save the planet?

Scientists are investigating what would happen if we are looking for metals at the bottom of the ocean.

They are particularly interested in cobalt, a major component of rechargeable batteries in phones and electric cars.

As more and more of us abandon fossil fuels, the demand for cobalt is even greater.

But what harm could the exploitation of the seabed do to marine life?

Laura Foster video

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