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"There is still a chance to stop this industry before it begins, but only if governments stand up for science, equity, and precaution now," one campaigner said.
Despite growing momentum, world governments failed to agree to a moratorium on deep-sea mining as the 30th session of the International Seabed Authority wrapped up on Friday.
The authority's July meeting was the first since U.S. President Donald Trump signed an executive order to expedite permits for deep-sea mining under U.S. authority and The Metals Company (TMC) promptly applied for U.S. permits. Governments rebuked the U.S. and TMC for their unilateral approach and did not agree on a mining code that would allow the controversial practice to move forward under international law. However, campaigners said more decisive action is needed to protect the ocean and its biodiversity.
"Governments have yet to rise to the moment," Greenpeace International campaigner Louisa Casson said in a statement. "They remain disconnected from global concerns and the pressing need for courageous leadership to protect the deep ocean."
Casson continued: "We call on the international community to rise up and defend multilateralism against rogue actors like The Metals Company. Governments must respond by establishing a moratorium and reaffirming that authority over the international seabed lies collectively with all states—for the benefit of humanity as a whole."
The International Seabed Authority (ISA) gains its authority to regulate deep-sea mining under the United Nations Law of the Sea, to which the U.S. is not party. TMC, however, could suffer consequences for bypassing the international process, as other countries and companies may decide not to do business with it.
At the most recent session, the ISA's council decided not to revoke exploratory permits it had previously granted to TMC and its subsidiaries. However, it approved an investigation on Monday into whether mining contractors such as TMC subsidiaries Nauru Ocean Resources Inc. and Tonga Offshore Mining Limited were abiding by their obligations under international law.
"TMC has been testing the limits of what it can get away with, a bit like a child seeing how far it can go with bad behavior," Matthew Gianni, cofounder of the Deep Sea Conservation Coalition (DSCC), told The New York Times.
"The member countries of the ISA have basically sent a shot across the bow, a warning to TMC that going rogue may well result in the loss of its ISA exploration claims," Gianna explained, adding that the investigation also served as a warning to other companies who might consider following TMC's example.
"The Trump administration's pursuit of deep-sea mining isn't about global stewardship—it's about sidestepping it."
Casson agreed: "The international community's message to The Metals Company is clear: Violating international law, ignoring scientific consensus, and disregarding human rights will have consequences. This is also a warning to any companies or governments choosing to align themselves with [TMC CEO] Gerard Barron's business model—they must be prepared to bear the reputational fallout of trying to destroy the ocean."
At the same time, a U.S. representative spoke on Thursday, doubling down on Trump's dismissal of the international process and earning instant push back from Brazil, France, and China
"As a non-party to the Law of the Sea Convention, the United States is not bound by the convention rules dealing with seabed mining through the International Seabed Authority," the U.S. statement said in part.
The statement came days after Greenpeace released a report titled Deep Deception: How the Deep-Sea Mining Industry is Manipulating Geopolitics to Profit from Ocean Destruction, which details how TMC and other deep-sea mining companies are exploiting national security concerns to lobby U.S. lawmakers to fast track deep-sea mining.
"The U.S. statement confirms what Deep Deception has already exposed: The Trump administration's pursuit of deep-sea mining isn't about global stewardship—it's about sidestepping it," Arlo Hemphill, Greenpeace USA's project lead for the Stop Deep-Sea Mining campaign, said in a statement. "By rejecting the ISA's authority while claiming environmental responsibility, the U.S. is trying to have it both ways—and in doing so is advancing a 'smash and grab' agenda that puts ocean health and international cooperation at serious risk."
Ultimately, ocean advocates agree that the only way to protect the deep sea is for governments to agree to a precautionary pause on a practice they argue would do irreparable harm to ecosystems science barely understands.
The consensus for such a pause is building, with Croatia becoming the 38th nation to support one during the latest ISA meeting.
"The ISA is paralyzed by a small group clinging to outdated extraction agendas while blocking even the most basic reforms," Simon Holmström, the deep-sea mining policy officer for Seas at Risk, said in a statement. "The firm rejection of the U.S. and The Metals Company's power grab, alongside 38 countries now calling for a moratorium or precautionary pause, shows growing resistance to sacrificing the planet's least understood ecosystem for corporate short-term profit."
"To even consider a new form of ecocide on our already ailing planet is both reckless and irrational."
Several nations spoke strongly in favor a moratorium, including Palau, Panama, and France.
"Exploiting the seabed is not a necessity—it is a choice," said His Excellency Surangel S. Whipps Jr., president of the Republic of Palau, on Tuesday. "And it is reckless. It is gambling with the future of Pacific Island children, who will inherit the dire consequences of decisions made far from their shores."
A Pacific leader from Solomon Island also defended the interests of the Pacific Ocean community: "As Pacific people, we continue to carry the trauma of what extractive industries have already done to our homes. Mining companies that came with promises, stripped our lands and waters, and left behind ecological, cultural, and spiritual scars. We cannot let that cycle repeat itself, in the ocean that connects us. That sustains us. And that defines us."
Olivier Poivre d'Arvor of France called for a pause of 10-15 years: "Our message is clear: no deep-sea mining without science, without collective legitimacy, without equity [...] France is calling for a moratorium or a precautionary pause. What for? Because we refuse to mortgage the future for a few nodules extracted in a hurry, in favor of a few."
However, campaigners argued that many governments continued to fall short of the commitments they had made at the U.N. Ocean Conference (UNOC) in Nice in early June.
"Thirty-eight states have now joined the call for a moratorium or precautionary pause, with Croatia joining the coalition during this Assembly," said DSCC campaign director Sofia Tsenikli. "But too many other states, which were bold in their ocean promises at UNOC, are not putting this into action at the ISA. Governments must meet their promises by doing what it takes to implement a moratorium before it's too late."
Farah Obaidullah, founder and director of The Ocean and Us, argued that the ocean already faces too many other threats to add the additional burden of deep-sea mining.
"The health of the high seas including the seabed is critical to our own. Yet our shared heritage faces an onslaught of threats from climate and nature collapse, escalating tensions, and failed leadership," Obaidullah said. "To even consider a new form of ecocide on our already ailing planet is both reckless and irrational. We know that deep-sea mining will devastate life in the deep ocean, wipe out species before they have been discovered, and impact ocean functions, including carbon sequestration. When it comes to the ocean we have no time to lose. We cannot colonize and conquer our shared heritage which belongs to us all. There is only one responsible way forward, and that is to secure a moratorium on deep-sea mining."
DSCC's Gianni also argued strongly for a pause: "Being on the fence or remaining silent is not a politically defensible position. We are risking severe ecological damage, and future generations will ask what we did to stop it. There is still a chance to stop this industry before it begins, but only if governments stand up for science, equity, and precaution now, and take action to prevent companies within their jurisdiction from cooperating with rogue mining operations."
Greenpeace's Hemphill concluded: "Governments must secure a moratorium that leaves no room for a desperate industry to force through a mining code. The science is not ready. The legal framework is not in place. The world must not be bullied into an irreversible mistake for the benefit of a few."
"This budget proposal shows yet again the extremes to which anti-wildlife members of Congress will go to sacrifice endangered species," said one conservationist.
As Republicans in the U.S. House of Representatives begin work on spending legislation for fiscal year 2026, conservationists and congressional Democrats are blasting a key appropriations bill released Monday.
"House Republicans are once again waging war on America's wildlife in yet another giveaway to their industry allies," said Stephanie Kurose, deputy director of government affairs at the Center for Biological Diversity, in a statement. "Extinction isn't inevitable, it's a political choice. The Appropriations Committee has one job to do, which is to fund the government, not decide whether our most vulnerable animals get to survive."
The bill that the Interior, Environment, and Related Agencies Subcommittee is set to consider on Tuesday morning would not only slash funding for the U.S Environmental Protection Agency (EPA)—by 23%—and the Fish and Wildlife Service, but also strip Endangered Species Act (ESA) protections from animals including gray wolves, the center noted.
"This budget proposal shows yet again the extremes to which anti-wildlife members of Congress will go to sacrifice endangered species," declared Robert Dewey, vice president of government relations at Defenders of Wildlife. "The bill is loaded with riders that attack the Endangered Species Act and would put some of America's most iconic species, including the grizzly bear and wolverine, at serious risk of extinction."
"The bill and all who support it are compromising the crucial habitats, outdoor recreation areas, and natural resources that Americans and wildlife rely on."
The legislation would block funding for listing the greater sage-grouse as well as money to protect the northern long-eared bat, the lesser prairie-chicken, and captive fish listed under the ESA. It would also block the Biden administration's rules for the landmark law.
"By blocking protections for public lands while also providing short-sighted lease sales for the benefit of oil and gas corporations, the bill and all who support it are compromising the crucial habitats, outdoor recreation areas, and natural resources that Americans and wildlife rely on," Dewey said.
Democrats on the committee put out a statement highlighting that, along with attacking wildlife, worsening the fossil fuel-driven climate emergency, and jeopardizing public health by favoring polluters, the GOP legislation would hike utility bills, promote environmental discrimination against rural and poor communities, and cut national park funding.
"With the release of the FY26 Interior bill, it's clear House Republicans are once again pushing an agenda that accelerates the climate crisis, upends our national parks system, and leaves local communities to fend for themselves—all while undermining the power of the Appropriations Committee and of Congress," said Rep. Chellie Pingree (D-Maine), ranking member on the Interior, Environment, and Related Agencies Subcommittee.
"We are still living with the fallout of last year's failure to negotiate a full-year funding bill. Instead of correcting course, the bill released today delivers more of the same: It cuts water infrastructure funding, slashes EPA programs, and wipes out environmental justice and climate initiatives. It even blocks the EPA from completing its risk assessment on PFAS in sewage sludge," she continued, referring to per- and polyfluoroalkyl substances, also called forever chemicals. "On top of the environmental attacks, Republicans are taking aim at the arts and cultural institutions that enrich communities and drive local economies."
Pingree asserted that "any arguments that these irresponsible cuts are somehow fiscally responsible ring hollow in the wake of Republicans adding $3.4 trillion to the national deficit thanks to their disastrous so-called 'One Big Beautiful Bill.' I urge my Republican colleagues to come to the table and support the essential work of this subcommittee: Protecting public health, conserving our lands and waters, investing in resilience, and ensuring that every community—from rural Maine to urban centers—has access to a healthy environment and a vibrant cultural life."
House Appropriations Committee Ranking Member Rosa DeLauro (D-Conn.) pointed out that President Donald Trump "promised to address the cost-of-living crisis, but instead, he and House Republicans are making it worse."
"House Republicans' 2026 Interior funding bill raises utility bills and energy prices to benefit billionaires and big corporations," DeLauro said. "Republicans are threatening the air we breathe and the water we drink and taking steps that damage our public lands, promote dirty energy, and hinder our ability to confront the climate crisis."
"In addition to these dangerous cuts, Republicans' proposal would mean fewer trips to national parks and less access to museums and the arts," she warned. "House Republicans are more focused on lining the pockets of big oil companies than lowering prices for working-class, middle-class, rural, and vulnerable families; protecting our public health; and preserving the planet."
"We're gambling with both biodiversity and billions in economic value every day that action is delayed," said one expert.
As this year's United Nations Ocean Conference began in France on Monday, scientists published a study showing that another "planetary boundary," or barriers that ensure the Earth is a "safe operating space for humanity," has been crossed.
Researchers said in 2023 that 6 of the 9 boundaries—biogeochemical flows, biosphere integrity, the climate, freshwater, land use, and novel entities—had been crossed. Last year, they issued a "red alert" about ocean acidification, the topic of the new study, Ocean Acidification: Another Planetary Boundary Crossed.
As the U.S. National Oceanic and Atmospheric Administration (NOAA) explains, humanity's burning of fossil fuels and land use changes have caused the concentration of carbon dioxide in the atmosphere to soar, and the ocean absorbs some of it. The resulting chemical interactions make seawater more acidic.
In the new study, scientists from NOAA, Oregon State University, and the United Kingdom's Plymouth Marine Laboratory (PML) wrote that "we improve upon the ocean acidification planetary boundary assessment and demonstrate that by 2020, the average global ocean conditions had already crossed into the uncertainty range of the ocean acidification boundary."
"This analysis was further extended to the subsurface ocean, revealing that up to 60% of the global subsurface ocean (down to 200 m) had crossed that boundary, compared to over 40% of the global surface ocean," they continued. "These changes result in significant declines in suitable habitats for important calcifying species, including 43% reduction in habitat for tropical and subtropical coral reefs, up to 61% for polar pteropods, and 13% for coastal bivalves."
"As our seas increase in acidity, we're witnessing the loss of critical habitats that countless marine species depend on, and this, in turn, has major societal and economic implications."
The study's lead author, North-East Atlantic Ocean Acidification Hub chair and PML professor Helen Findlay, said in a Monday statement that "looking across different areas of the world, the polar regions show the biggest changes in ocean acidification at the surface. Meanwhile, in deeper waters, the largest changes are happening in areas just outside the poles and in the upwelling regions along the west coast of North America and near the equator."
"Most ocean life doesn't just live at the surface—the waters below are home to many more different types of plants and animals. Since these deeper waters are changing so much, the impacts of ocean acidification could be far worse than we thought," Findlay noted. "This has huge implications for important underwater ecosystems like tropical and even deep-sea coral reefs that provide essential habitats and nursing refuge for many species, in addition to the impacts being felt on bottom-dwelling creatures like crabs, sea stars, and other shellfish such as mussels and oysters."
Fellow PML professor and Global Ocean Acidification Observing Network co-chair Steve Widdicombe, who provided the study authors with comments on a draft, said Monday that "ocean acidification isn't just an environmental crisis—it's a ticking time bomb for marine ecosystems and coastal economies."
"As our seas increase in acidity, we're witnessing the loss of critical habitats that countless marine species depend on, and this, in turn, has major societal and economic implications," he warned. "From the coral reefs that support tourism to the shellfish industries that sustain coastal communities, we're gambling with both biodiversity and billions in economic value every day that action is delayed."
The 2024 Planetary Boundaries report showed 6/9 boundaries breached with the 7th, Ocean Acidification, in danger. A new study shows that this too has now been crossed. The implications are huge!onlinelibrary.wiley.com/doi/10.1111/...#climatechange #oceanacidification #planetaryboundaries #oceans
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— Dr Tom Harris (@drtomharris.bsky.social) June 9, 2025 at 9:22 AM
Costa Rica and France are co-hosting the U.N. summit in the French coastal city of Nice this week. The theme is "accelerating action and mobilizing all actors to conserve and sustainably use the ocean."
Greenpeace USA oceans campaign director John Hocevar, who will be attending the meeting, said Monday that "this conference couldn't come at a more critical time. The ocean is reeling from the combined impacts of industrial fishing, plastic pollution, and climate change. And just when bold leadership is most needed, the U.S. has walked away from the global stage, opening the floodgates to destruction through a barrage of Trump administration executive orders that threaten both domestic and international waters."
"We can't afford any more delay," he stressed. "The decisions made in Nice will set the tone for key global efforts to stem the ocean crisis in the coming months, including the plastics treaty, the global ocean treaty, and deep-sea mining talks at the International Seabed Authority. Whether this conference marks a turning point or takes our oceans further down the road to ruin will depend on the strength and ambition of the commitments made by the international community to stand up for science, uphold international law, and advance environmental justice."