What’s at stake if we mine the deep sea?

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