Huge rich-metal deposits on the ocean floor could transform the global commodities market but there are fears mining them could harm rare ecosystems

A scientific expedition has been launched from the UK to explore the mining of rich metal deposits on the deep ocean floor, which are the focus of a new gold rush around the world.

The UK research vessel, the RSS James Cook, left Southampton on Thursday, heading for the underwater ridge in the middle of the Atlantic where volcanic activity drives hot springs, also known as black smokers.

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Source: Guardian Environment