Murky waters.

Deep-sea miners say they offer a clean, ethical way to harvest precious metals for a low-carbon future. Environmentalists aren’t convinced.

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Sampling a vent chimney at Solwara I. Photo courtesy Nautilus Minerals.

Janet Davison at CBC | 5 August 2018

They don’t look like much at first, the black, potato-shaped blobs that lie scattered on the seabed, deep beneath the surface of the Pacific Ocean.

But as is so often the case, looks can be deceiving.

These nodules, and the metals that lie within them, are at the heart of a new and potentially lucrative mining frontier.

Metals like cobalt, copper, nickel and manganese have been mined on land for years, but going deep into the ocean to find them is becoming an increasingly tantalizing prospect. Companies like DeepGreen Metals and Nautilus Minerals — both with Canadian ties — have invested millions in preparation to raise the minerals from the seabed.

Read the full story here: Murky Waters.