Deep-sea mining to turn oceans into ‘new industrial frontier’

Greenpeace report reveals 29 floor-exploration licences have been granted worldwide

The world’s oceans are facing a “new industrial frontier” from a fledgling deep-sea mining industry as companies line up to extract metals and minerals from some of the most important ecosystems on the planet, a report has found.

The study by Greenpeace revealed that although no mining had started on the ocean floor, 29 exploration licences had been issued covering an area five times bigger than the UK. Environmentalists said the proposed mining would threaten not only crucial ecosystems but the global fight against climate breakdown.

Louisa Casson, an ocean campaigner at Greenpeace, said: “The health of our oceans is closely linked to our own survival. Unless we act now to protect them, deep-sea mining could have devastating consequences for marine life and humankind.”

The licences, issued by a United Nations body, the International Seabed Authority, have been granted to a handful of countries that sponsor private companies. They cover vast areas of the Pacific, Atlantic and Indian Oceans, totalling 1.3m sq km (500,000 sq miles).

If the mining goes ahead, large machines will be lowered on to the seabed to excavate cobalt and other rare metals.

Campaigners said that, as well as destroying little understood regions of the ocean floor, the operations would deepen the climate emergency by disrupting carbon stores in seafloor sediments, reducing the ocean’s ability to store it.

The industry has said deep-sea mining is essential to extract the materials needed for a transition to a green economy by supplying raw materials for key technologies including batteries, computers and phones. Its advocates say deep-sea mining is less harmful to the environment and workers than most existing mineral and mining operations.

However, the report said: “The deep-sea mining industry presents its development as essential for a low-carbon future, yet this claim is not substantiated by actors in the renewable energy, electric vehicle or battery sectors. Such arguments ignore calls for a move from the endless exploitation of resources to a transformational and circular economy.”

The environmentalist Chris Packham, writing in the Guardian, said deep-sea mining posed a serious threat to global oceans.

“We’ve already seen the huge destruction ravaged upon our planet by corporations mining on land. Are we really prepared to give the go-ahead to the mining industry expanding into a new frontier, where it will be even harder for us to scrutinise the damage caused?”

The report called on governments to agree on a strong global ocean treaty in the next 12 months, citing scientists, governments, environmentalists and representatives of the fishing industry, who warned of the threat posed by deep-sea mining to marine life.

The report said the UK government held licences to exploit more of the international seabed than any government apart from China. It accused ministers of positioning the government as a leader on marine protection while simultaneously investing in deep-sea mining.

Casson said: “We need the UK government to show strong global leadership and champion ocean protection. They have backed the call for global action to safeguard our oceans but they are also a leading advocate for deep-sea mining. Such hypocrisy is unacceptable.”

A government spokesperson said: “The UK continues to press for the highest international environmental standards, including on deep sea mineral extraction. We have sponsored two exploration licences, which allows scientific marine research to fully understand the effects of deep sea mining and we will not issue a single exploitation licence without a full assessment of the environmental impact.”


Matthew Taylor Environment correspondent

The GuardianTramp

Related Content

Article image
UK’s deep-sea mining permits could be unlawful – Greenpeace
Licences given to arms firm Lockheed Martin said to go against government’s stance on exploiting seabed

Karen McVeigh

12, May, 2021 @5:01 AM

Article image
In too deep: why the seabed should be off-limits to mining companies | Chris Packham
We still know so little about the wonderful world at the bottom of the oceans. Sending in giant bulldozers is a terrible idea, says naturalist Chris Packham

Chris Packham

03, Jul, 2019 @5:00 AM

Article image
Conservationists call for urgent ban on deep-sea mining
Motion at Marseille summit wins global support for warning of permanent biodiversity loss and unknown effect on ecosystem

Karen McVeigh

09, Sep, 2021 @6:31 PM

Article image
Deep-sea ‘gold rush’: secretive plans to carve up the seabed decried
Greenpeace report warns against granting licences to ‘deeply destructive’ industry with opaque oversight, and calls for global ocean treaty

Jonathan Watts

09, Dec, 2020 @12:01 AM

Article image
The Observer view on the pros and cons of deep-sea mining | Observer editorial
There may be merits to mining the seabed, but investing in alternative green technologies on land should be the priority

Observer editorial

29, Aug, 2021 @5:30 AM

Article image
David Attenborough calls for ban on 'devastating' deep sea mining
Proposed mining of seabed could destroy unstudied ecosystems and disrupt vital carbon-storing functions, says naturalist

Karen McVeigh

12, Mar, 2020 @4:56 PM

Article image
Is deep sea mining vital for a greener future – even if it destroys ecosystems?
A new gold rush is targeting rich ores on the ocean floor containing valuable metals needed for smartphones and green technologies, but also hosting exotic ecosystems

Damian Carrington Environment editor

04, Jun, 2017 @12:00 PM

Article image
UK expedition explores potential and risks of deep sea gold rush
Huge rich-metal deposits on the ocean floor could transform the global commodities market but there are fears mining them could harm rare ecosystems

Damian Carrington

04, Jul, 2016 @5:00 AM

Article image
Can deep-sea mining avoid the environmental mistakes of mining on land?
Ambitious research aims to limit environmental damage on the sea floor – but some scientists fear mining this pitch black world will do more harm than good

Carol J Clouse

28, Jun, 2017 @4:17 PM

Article image
Is deep-sea mining a cure for the climate crisis or a curse?
Sea-floor nodules could fight global heating, but mining them may damage ocean ecology

Robin McKie

29, Aug, 2021 @9:00 AM