Two Years of Deep-sea Mining in Review: Deep-sea Mining has Time.

As in-person negotiations on the future of exploitation in the deep ocean resume this week in Kingston Jamaica, we reflect back on the last two years of development as reported on our sister site, the Deep-sea Mining Observer. This editorial first appeared on August 27, 2021.


Opinion by Andrew Thaler, DSMO Editor-in-Chief

As we enter the final quarter of 2021, with a global pandemic still raging across all but a few countries and impacting supply chains and critical work throughout the world, it looks increasingly unlikely that an in-person session of the ISA will be possible before 2022, marking two years of substantially diminished progress on the development of the mining code and increasing frustration among stakeholders. Some of the most important voices at the negotiating table continue to struggle to get the latest outbreak under control. India, Russia, the UK, and Japan are not only among the top ten countries with the most new Covid cases as of this week but are ISA member states that sponsor mining contractors (at least one other contractor-sponsoring member state has stopped reporting new cases, while the United States, though not a member state, is also in the midst of a pandemic surge and contributes capacity and expertise to ISA negotiations).

In light of this global progress slowdown, not just for deep-sea mining, but among a host of international challenges and objectives, the push for urgency among some mining contractors and sponsoring states simply does not add up.

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Two Years of Deep-sea Mining in Review: The Precarious Partnership Between Deep-sea Mining Contractors and Environmental NGOs

As in-person negotiations on the future of exploitation in the deep ocean resume this week in Kingston Jamaica, we reflect back on the last two years of development as reported on our sister site, the Deep-sea Mining Observer. This editorial first appeared on June 25, 2021.


Opinion by Andrew Thaler, DSMO Editor-in-Chief

Deep-sea mining occupies a unique niche in the annals of extractive exploration. Its modern manifestation owes as much to the surging demand of critical minerals as it does to the work of environmental organizations shining a light on the vast environmental and ethical catastrophes of terrestrial mining. In its current form, deep-sea mining is an industry motivated by the need to rapidly wean ourselves from fossil fuels. It is, in short, an industrial response to an environmental crisis. 

Whether or not it is the right response, for whatever “right” means in the midst of a global crisis while the clock is ticking, remains to be proven. No plans of work have been approved and no mining licenses have been issued by the International Seabed Authority for Areas Beyond National Jurisdiction. What few attempts have been made in territorial waters have not reached production or have collapsed under the complexity of the operation. Deep-sea mining is an industry that has been perpetually just over the horizon. That horizon creeps closer every year.

There is an precarious partnership between deep-sea mining contractors and environmental NGOs, two entities with wildly differing views of what the world needs to reach sustainable development, but a recognition, at least in principle, that negotiation and compromise are possible. Even the calls for moratoria leave room for the possibility that deep-sea mining can be shown to be sustainable.

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Two Years of Deep-sea Mining in Review: A 3-decade-long disturbance study on the deep abyssal plain.

As in-person negotiations on the future of exploitation in the deep ocean resume this week in Kingston Jamaica, we reflect back on the last two years of development as reported on our sister site, the Deep-sea Mining Observer. This article first appeared on May 22, 2020.


In the late 1980s, as the first wave of deep-sea mining exploration approached a decade of hibernation, researchers launched an ambitious experiment to understand the long-term environmental impact of harvesting polymetallic nodules from the abyssal plain. The Disturbance and recolonization experiment in a manganese nodule area of the deep South Pacific (DISCOL) remains the most ambitious attempt to understand how nodule extraction affects deep ocean ecosystems. Though interest (and funding) waxed and waned with the prevailing interest in deep-sea mining, now, more than 30 years later, DISCOL provides the only large, multi-decade impact study from which contractors, regulators, and environmental advocacy groups can draw inferences about the recovery and resilience of deep-sea ecosystems following mining-induced disturbances throughout the lifetime of an ISA-issued mining exploration or exploitation lease. 

The 1980s saw a surge in interest for deep-sea mining. The successful early campaigns of the late 1970s, bolstered by CIA funding for Project Azorian, presented a future of seemingly limitless profit scattered across the seafloor. That the early financial projections were supported by covert government funding was not yet widely known, and, even for those who were privy to the operation, regardless of initial funding the value had been established, the ship built, the technology sea-trialed. The profit potential was there. What was still tabula rasa was the environmental consequences of extraction on an almost completely unknown ecosystem.

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Two Years of Deep-sea Mining in Review: Confusion and Gridlock at the 26th Session of the International Seabed Authority

As in-person negotiations on the future of exploitation in the deep ocean resume this week in Kingston Jamaica, we reflect back on the last two years of development as reported on our sister site, the Deep-sea Mining Observer. This article first appeared two years ago, on March 19, 2020.


The 26th Session of the International Seabed Authority convened this February to continue the long and complex negotiations over the draft Mining Code and work towards consensus among the various stakeholders. 2020 was set as the target year to get the Mining Code finalized, but many delegates left Jamaica feeling frustrated with the pace of deliberations and a growing sense that the 2020 deadline was far too optimistic. Chief among the challenges was a recognition that the Council is now further from reaching agreement on the financial model than it was at the end of the 25th Session and a lack of clarity over the composition of the Legal and Technical Commission as it pertains to the representation of both geographic distribution and technical expertise.

Procedural Gridlock slows negotiations

The overwhelming sentiment of member state delegates, NGO’s, and even contractors was a sense of dysfunction and confusion, best highlighted by the fact that over a 5-day meeting, the Council went through three new presidents. First, as outgoing Council President Lumka Yengeni was absent from the meeting, outgoing regional Vice-president Luis del Solar assumed the chair to preside over the selection of a new council president. Usually, a Regional Group arrives at the ISA with a nominee for council president already prepared. Not this time. A three hour delay to select the president of the 26th Session of the ISA on the morning of the first day set the tone for the week. 

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Two Years of Deep-sea Mining in Review: As deep-sea mining inches towards production, a global pandemic brings negotiations to a halt.

As in-person negotiations on the future of exploitation in the deep ocean resume this week in Kingston Jamaica, we reflect back on the last two years of development as reported on our sister site, the Deep-sea Mining Observer. This article first appeared two years ago, on March 18, 2020.


When the first part of 26th Session of the International Seabed Authority convened last month, there was a new stakeholder impacting the pace of deliberations. COVID-19 had just begun to spread beyond China and nations across the world were limiting travel in the hopes of containing the outbreak. With Jamaica imposing a 14-day quarantine on any traveler coming from China, the Chinese delegation was notably absent, with a delegation from the New York mission standing in for their colleagues. But they weren’t the only delegation affected. Multiple delegates whose travel was supported by the Commonwealth we’re also unable to attend. 

Though those absences did slow down deliberations and cast a pallor over the proceedings, they were nothing compared with what happened next. 

Earlier this week, Forbes published a contributor article entitled “Will Ocean Seabed Mining Delay The Discovery Of Potential Coronavirus Vaccines?” Though hyperbolic in its reaction to an industry which has yet to even begin production, ironically Forbes may have gotten the situation reversed: long before deep-sea mining has even the remote potential to delay the development of novel pharmaceuticals, the COVID-19 pandemic will almost certainly delay the development of deep-sea mining. 

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The most massive ‘massive sardine’ discovered in the deep waters of Japan

This article originally appeared in the February 2021 issue of the Deep-sea Mining Observer. It is reprinted here with permission. For the latest news and analysis about the development of the deep-sea mining industry, subscribe to DSM Observer here: http://dsmobserver.com/subscribe/

Featured image: Colossal Slickhead, from Fujiwara et al. 2021

Even with the intense research focus of the last twenty years, the deep sea is still almost entirely unexplored. New species are par for the course every time a fresh sample is recovered from the abyssal plain. The vast biodiversity of the deep seafloor is offset by a biomass deficit; the denizens of the deep sea, with a few notable exceptions, are few and far between, their size often limited by the paucity of food available to them. While giants like the Japanese King Crab or the Giant Deep-sea Isopod do occur, the vast majority of deep-sea species are relatively small. 

The discovery of new species in the deep ocean is common, but the discovery of new giants in the deep sea is extremely rare. 

Last month, a research team from the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) led by Dr. Yoshihiro Fujiwara and the Deep-sea Biodiversity Research Group announced the discovery of a new species of slickhead from the deep waters around Suruga Bay. Weighing in at 25 kilograms and measuring 140 centimeters, the Colossal Slickhead, described from four specimens recovered from depths greater than 2000 meters, is the largest species of slickhead (a group of deep-sea fishes found in waters deeper than 1,000 meters) yet described

In Japan, slickheads are commonly called sekitori iwashi–’massive sardines’. In recognition of its immense size, the researchers gave this most massive of massive sardines the common name yokozuna iwashi, after the title given to champion sumo wrestlers. 

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Beyond Batteries: exploring the demand for scandium and tellurium from the deep ocean

This article originally appeared in the October/November 2020 issue of the Deep-sea Mining Observer. It is reprinted here with permission. For the latest news and analysis about the development of the deep-sea mining industry, subscribe to DSM Observer here: http://dsmobserver.com/subscribe/

Featured image: ferromanganese crust being recovered from Tropic Seamount. Photo courtesy NERC.

For the last decade, next-generation batteries have been the motivating force for the deep-sea mining industry. The electrification of the world’s vehicle fleets to wean society off of fossil fuels has created huge demands for cobalt, nickel, and other metals necessary for high-density batteries. The demand has placed the green revolution in a position where we either need to unlock new reserves of these essential metals or fundamentally change how we make batteries. 

While new battery technologies promise to reduce or eliminate the need for cobalt and other metals, unlocking the raw materials needed to energize electric vehicles isn’t the only mineral supply chain that can support commercial exploitation of the deep seafloor. The critical minerals found in polymetallic nodules, seafloor massive sulphides, and cobalt-rich ferromanganese crusts are being eyed for a variety of production needs, both commercial and strategic. 

It was the manganese content of polymetallic nodules that originally caught the eye of prospectors in the 1960s and 1970s looking to exploit the mineral wealth of the deep oceans. Useful in the creation of steel and aluminum alloys, as well as a lead replacement in internal combustion engines, and as an electron acceptor in dry cell batteries, among other uses, the market for manganese crashed in the 1980s as more accessible sources came online and alternative technologies mitigated its demand. As the 12th most abundant element in the Earth’s crust, global manganese production more than satisfied demand. Since 2000, manganese has been used as a substitute for copper and nickel in several US coins. 

But manganese and cobalt aren’t the only metal that occurs in abundance beneath the waves. Gold, nickel, copper, and rare earth elements are also commonly cited as viable resources to justify exploitation in areas beyond national jurisdiction. Two metals that aren’t quite as frequently discussed but may, nevertheless, prove attractive to deep-sea mining contractors, are scandium and tellurium. 

Scandium is a particularly challenging resource. It is used to produce strong, lightweight aluminium alloys for aerospace components, as well as, in much lower quantities, in the manufacture of some sporting equipment and firearms. Only a handful of scandium operations exist, producing 15 to 20 tons of scandium per year as a byproduct of other mineral extraction. This represents about half the global demand, creating a powerful incentive to develop new and novel scandium prospects. 

Scandium occurs in uniquely high quantities in polymetallic nodules and ferromanganese crust off the northern coasts of Alaska within the United States Exclusive Economic Zone. Scandium is also found in metal enriched muds in the northwestern Pacific Ocean, within Japan’s Exclusive Economic Zone associated with Minamitorishima Island. Much like other deep-sea elements, scandium, and its applications in making lightweight, energy efficient aircraft, makes it potentially an important component of the green revolution. 

Tellurium is one of the rarest metals on Earth. It is a technology-critical element–it is extremely important for the development of emerging technologies. Tellurium is used in the production of semiconductors, fiber optic cables, and solar panels, among other uses. It is produced as a byproduct in copper and lead refining and is produced primarily within the United States, Japan, Canada, and Peru. A little more than 100 tons of tellurium are produced every year. 

Most critically, tellurium is a key component of cadmium telluride solar cells; efficient, thin film solar cells which are more efficient at absorbing light than silicon-based solar cells. Cadmium telluride solar panels are cheaper per kilowatt than conventional silicon panels and are lighter and easier to deploy. Tellurium occurs in abundance in mineral-rich crusts of the Tropic Seamount, a mountain in the middle of the Atlantic, just south of the Canary Islands. The deposits on this seamount, which is alternately claimed to fall within the EEZs of both Spain and Morocco, may be 50,000 times richer than all terrestrial sources

Scandium and tellurium are the oddball metals in the push to mine the deep-sea. While elements like cobalt, nickel, and copper are needed in massive quantities to supply an exploding demand for next-generation batteries, neither scandium nor tellurium production is needed at that scale. Their relative rarity and the novelty of their occurrence in a few deposits on the seafloor creates a much different value proposition for these resources. As critical minerals with sparse terrestrial sources, barring a future surge in demand, accessing seafloor deposits represents a strategic, rather than purely commercial, decision.

Scandium demand, in particular, could finally mark the long-expected return of the United States to the deep-sea mining industry. 

The United States moves towards exploration and exploitation of critical mineral resources in the deep ocean.

This article originally appeared in the October/November 2020 issue of the Deep-sea Mining Observer. It is reprinted here with permission. For the latest news and analysis about the development of the deep-sea mining industry, subscribe to DSM Observer here: http://dsmobserver.com/subscribe/

Featured Image: US Exclusive Economic Zone (note: Navassa territorial claim is disputed by Haiti).

Since the signing of the UN Convention on the Law of the Sea and the creation of the International Seabed Authority, the United States of America has been a shadow partner in the growing deep-sea mining industry. Though the United States provides scientific and technical expertise, and is a de facto participant through American-owned subsidiaries incorporated in sponsoring states, the nation with the world’s second largest exclusive economic zone never ratified the core treaties and thus has limited influence at negotiations.

While the United States made significant contributions to the early development of the industry, it has been largely inactive since the mid 1980’s, focusing instead on its offshore fossil fuel resources and leaving critical minerals in the deep ocean largely untouched. Within the US EEZ surrounding the country’s Pacific territories, in particular, a push for large, remote marine protected areas in the form of the Pacific Remote Islands Marine National Monument, Rose Atoll Marine National Monument, Marianas Trench Marine National Monument, and Papahānaumokuākea Marine National Monument, deep-sea mining has been effectively prohibited.  

The United States continues to assert claims over two large lease blocks in the Clarion-Clipperton Zone, citing existing precedent from prior to the ISA’s creation, though no recent attempts have been made to exploit those blocks. The ISA, for its part, continues to hold those lease blocks in reserve, should the US eventually join all but a few nations who have ratified the Law of the Sea.

That general non-involvement at the policy level may soon change. In a recent Executive Order on Addressing the Threat to the Domestic Supply Chain from Reliance on Critical Minerals from Foreign Adversaries by the now-outgoing President of the United States tasked the Department of the Interior with assessing any potential national security threat posed by the nation’s reliance on critical mineral imports, securing a domestic supply chain, and funding projects to increase critical mineral production within the United States. 

“By signing the Executive Order, President Trump declared a National Emergency and called for action to expand the domestic mining industry, support mining jobs, alleviate unnecessary permitting delays, and reduce our Nation’s dependence on China for critical minerals.” says Beverly Winston of BOEM’s Office of Public Affairs. “In the few weeks since the order was signed, leadership at relevant Department of the Interior agencies have been actively engaged in identifying specific actions that can be taken to implement the order.” 

Executive Orders are not always the best indicator of changing government priorities. A more definitive approach to identifying significant policy shifts is to examine contracting opportunities through the US General Services Administration. Soon after the President’s Executive Order, a solicitation for Geophysical, Geological, and Environmental Data Collection and Analysis supporting Outer Continental Shelf Marine Minerals Stewardship contract bids of indefinite duration and indefinite quantity was posted, providing funding for a four year marine critical minerals exploration campaign through the US Department of the Interior. 

This call is a much more substantial indicator that the US is planning a more aggressive push into deep-sea minerals in the coming years. In a possibly unrelated move, the US Geological Survey is recruiting a postdoctoral fellow in Geology, geochemistry and global context of deep-ocean marine minerals.

With respect to BOEM’s four-year horizon, Winston adds that “BOEM is actively collaborating with partner agencies, such as USGS and NOAA, to better understand our marine mineral resources and associated biological communities. BOEM is a member of the newly created National Ocean Mapping, Exploration, and Characterization Council, and also co-chairs the Interagency Working Group on Ocean Exploration and Characterization. Both of these bodies will work to identify priority areas for exploration and characterization, and to coordinate personnel and funds to study the priority areas.”

While these moves point to increased deep-sea mining exploration within the US EEZ, they don’t provide nearly as much clarity on the United States’ future plans for the Area. In recent ISA council meetings, the US delegation has intervened to assert their existing claims in the CCZ, however no recent actions suggest an intent to attempt to exploit those claims. 

Notably, the recent Executive Order is directed at the Department of the Interior, while it is the Department of Commerce, within which the National Oceanic and Atmospheric Administration is housed, who would initiate any exploration or exploitation in Areas Beyond National Jurisdiction. 

“Currently under the Outer Continental Shelf Lands Act (OCSLA),” concludes Winston, “BOEM’s leasing authority is limited to the Outer Continental Shelf offshore the coastal states. NOAA is the implementing agency for the Deep Sea Hard Minerals Resource Act, which establishes an interim domestic licensing and permitting regime for deep seabed hard mineral exploration and mining beyond the EEZ pending adoption of an acceptable international regime.”

Though the election of President-Elect Joe Biden will likely have substantial influence on future priorities for the Bureau of Ocean Energy Management, it is too early to know, according to BOEM representatives, how a new administration will impact critical minerals policy. With a core policy focus on climate change, it is almost certain that securing access to the critical minerals necessary to building next-generation energy infrastructure will remain a priority for the next administration. 

How anglerfish hack their immune system to hang on to a mate

This article originally appeared in the August/September 2020 issue of the Deep-sea Mining Observer. It is reprinted here with permission. For the latest news and analysis about the development of the deep-sea mining industry, subscribe to DSM Observer here: http://dsmobserver.com/subscribe/

When you live in the darkness of the abyss, finding a partner is hard and keeping a partner is even harder. Deep-sea anglerfish, one of the iconic ambassador species of the deep ocean, have found a novel solution to this problem–dwarf males are sexual parasites that latch onto the body of the much larger female anglerfish and then physically fuse to their partner, becoming permanently attached to the point where they share a circulatory and digestive system. 

Parasitic dwarf males are uncommon, but not unheard of, throughout the animal kingdom. Osedax, the deep sea bone eating worm, also maintains a harem of dwarf males in a specialized chamber in their trunk. But few species, and no other vertebrates, go to quite the extremes of the anglerfish. And with good reason. 

Vertebrate immune systems have a long shared history. The Major Histocompatibility Complex (MHC) is a suite of genes shared among all gnathostomes–the taxonomic group that contains all jawed vertebrates, from fish to fishermen. It creates the proteins which provide the foundation for the adaptive immune system, the core complex which allows bodies to tell self from no-self, detect pathogens, and reject non-self invaders. Suppressing the MHC seriously inhibits a vertebrate’s ability to fight off infection. 

Incidentally, not all deep-sea anglerfish have parasitic dwarf males, and the species most often presented as a type specimen in the popular press, the humpback anglerfish Melanocetus johnsonii, is one of several that do not have permanently attached parasitic dwarf males. M. johnsonii males are free-swimming throughout their life, they’re just small and clingy.

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Emerging technologies for exploration and independent monitoring of seafloor extraction in Areas Beyond National Jurisdiction

[The following is a transcript from a talk I gave at the 2019 Minerals, Materials, and Society Symposium at the University of Delaware in August, 2019. It has been lightly edited for clarity.]

Good afternoon and thank you all for coming. I want to change tracks for a bit and scan the horizon to think about what the future of exploration and monitoring in the high seas might look like because ocean and conservation technology is in the midst of an evolutionary shift in who has access to the tools necessary to observe the deep ocean.

This is the Area. Areas Beyond National Jurisdiction, International Waters, the High Seas, the Outlaw Ocean. It’s the portion of the ocean that falls outside of national EEZs and is held in trust by the UN under the Convention on the Law of the Sea as the Common Heritage of Humankind. It covers 64% of the ocean and nearly half of the total surface of the Earth. It’s also the region in which most major deep-sea mining ventures intend to operate.

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