Interest in seabed mining is growing but not enough attention is being paid to the environmental impacts

A growing number of companies and governments² – including Canada, Japan, South Korea, China and the UK – are currently rushing to claim rights to explore and exploit minerals found in and on the seabed, such as copper, manganese, cobalt and rare earth metals. There are currently 17 exploration contracts³ for the seabed that lies beyond national jurisdiction in the deep seas of the Pacific, Atlantic and Indian oceans, compared with only 8 contracts in 2010. Contract holders will be able to apply for licences to carry out commercial mining in the high seas as soon as regulations for exploitation are developed – anticipated as early as 2016.⁴ There is also significant exploration interest within national waters, particularly in the Pacific Ocean, and one licence to mine the deep seabed has already been granted in Papua New Guinean waters. However, very little is known about deep-sea habitats, or the impact that mining operations will have on ecosystems and the wider functioning of our oceans. Once thought to be relatively lifeless, scientists now recognise that the deep sea is actually a species-rich environment⁵, with many species still to be discovered. Because deep-sea species live in rarely disturbed environments and tend to be slow growing and late maturing, with some unique to their particular habitat types (such as hydrothermal vents) or even specific locations, they are highly vulnerable to disturbance or even extinction.⁶