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US Debates Deep-Sea Mining Race with China Amid Ecological Warnings

Concern over China's dominance in critical minerals is driving a renewed U.S. push for deep-sea mining, with industry leaders arguing the technology and regulatory framework are ready. Scientists and deep-sea ecologists strongly caution that the ecological risks are poorly understood and that mining could cause irreversible biodiversity loss. The hearing revealed that only a tiny fraction of the deep ocean has been explored or mapped, creating significant knowledge gaps. Lawmakers acknowledged the tension between urgent geopolitical competition and the potential for long-lasting environmental consequences.

Key Points: US-China Race for Deep-Sea Minerals Sparks Ecological Debate

  • US seeks to counter China's critical mineral dominance
  • Industry claims technology minimizes environmental impact
  • Scientists warn of biodiversity loss and data gaps
  • Vast majority of ocean floor remains unexplored
  • Geopolitical competition accelerates regulatory debate
3 min read

As China expands at sea, US debates mining ocean floor

US lawmakers debate deep-sea mining to counter China's mineral dominance, but scientists warn of irreversible ecological damage and data gaps.

"the best available data is insufficient to enable the responsible development of deep-sea mining - Dr Astrid Leitner"

Washington, March 31

Concern over China's dominance in critical minerals is driving renewed US interest in deep-sea mining, even as experts have cautioned lawmakers that the ecological risks beneath the waves remain poorly understood.

Lawmakers and industry leaders at a Congressional hearing stressed the urgency of securing supply chains for minerals such as cobalt, nickel, and copper, which are essential to defence systems, clean energy, and advanced technologies.

Congressman Scott Franklin said these resources are "vital to industries across our country," warning that adversaries like China "will undoubtedly seek to undermine the United States."

Industry executives argued that the US has both the technology and regulatory framework to move ahead. Gerard Barron, CEO of The Metals Company, told lawmakers that "we know enough to manage risks," pointing to decades of research and recent advances that reduce environmental disturbance.

Barron said that deep-seabed nodules could significantly reduce the US's dependence on imports, noting that they contain metals critical to sectors such as defence, artificial intelligence, and energy. He added that modern systems leave "almost invisible ripples on the sea floor" and limit environmental impact to relatively small areas.

But scientists warned that the push to accelerate mining may be premature.

Dr Astrid Leitner, a deep-sea ecologist, said "the best available data is insufficient to enable the responsible development of deep-sea mining," highlighting gaps in baseline data on biodiversity, ecosystem functions and long-term impacts.

She cautioned that mining could lead to "biodiversity loss" and "possible extinctions," with effects that may be long-lasting or irreversible.

Lawmakers across party lines acknowledged the scale of uncertainty. Ranking member Gabe Amo said the ocean remains "one of the least understood ecosystems on earth," adding that the consequences of missteps could be "long-lasting and in some cases irreversible."

The hearing also underscored how little of the ocean has been mapped or explored.

Brian Connon of Saildrone said only "54 per cent of the US EEZ has been mapped," leaving vast areas of American waters unexplored.

Veteran explorer Robert Ballard told lawmakers that humans have seen just "0.001 per cent of the deep ocean," stressing that exploration must precede any large-scale commercial activity.

Despite the uncertainties, geopolitical competition is accelerating the debate.

Lawmakers repeatedly pointed to China's lead in mineral processing and ocean research. According to testimony, China produces nearly 70 per cent of the world's rare earth elements and has invested heavily in mapping and exploration capabilities.

Supporters of deep-sea mining argue that failing to act could leave the US dependent on foreign supply chains.

Critics counter that moving too quickly risks damaging ecosystems that play a crucial role in regulating the climate, supporting fisheries, and maintaining ocean health.

- IANS

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Reader Comments

P
Priya S
The scientists' warnings are chilling. We've already damaged so much on land. The deep ocean is the last frontier, and we want to mine it before even understanding it? This is shortsighted. Climate regulation and fisheries are more important than unchecked tech growth. 🌊
R
Rohit P
From an Indian perspective, we should watch this closely. We have a long coastline and an EEZ in the Indian Ocean. If deep-sea mining becomes a global race, we need our own scientific and regulatory framework to protect our interests and our marine environment. Jai Hind!
S
Sarah B
The statistic that only 0.001% of the deep ocean has been seen is mind-blowing. How can you responsibly mine something you haven't even mapped? The US and China need to slow down. This isn't just about minerals; it's about the health of our entire planet.
V
Vikram M
The CEO saying they leave "almost invisible ripples" sounds like corporate greenwashing. We've heard similar promises before industries caused massive deforestation or pollution. Once the ecosystem is disrupted, there's no going back. Science must lead, not geopolitics.
K
Karthik V
Valid point about supply chain security. India is also trying to reduce dependence on China for critical minerals. But we must invest in recycling and terrestrial mining innovation first. Jumping to the deep sea because it's new and convenient is not a strategy.

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