The Future of Deep Sea Mining

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The deep ocean is home to vast reserves of polymetallic nodules. Mining companies say they are essential for our green future. But scientists warn that exploiting this resource could be catastrophic. This potentially could have effects on the ocean's ability to sequester and cycle carbon.

As the International Seabed Authority gathers in Jamaica to thrash out regulations for mining the deep sea, Chris Michael of the Guardian’s Seascape team gives Ian Sample the background to this highly contested decision. Ian also hears from the marine biologist Dr Diva Amon about why some scientists are sounding the alarm. Help support our independent journalism at theguardian.com/sciencepod