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Long-Term Impact of Deep-Sea Mining Revealed in Study
Seabed Damage Persists for Over 40 Years
A strip of the Pacific Ocean seabed mined for metals more than 40 years ago has yet to recover, according to a recent scientific study. The findings support calls for a moratorium on deep-sea mining as discussions take place at U.N.-led talks this week.
Study on the Clarion Clipperton Zone
A 2023 expedition to the mineral-rich Clarion Clipperton Zone, led by Britain’s National Oceanography Centre, found that a 1979 test mining experiment had lasting effects on the seafloor ecosystem. The region, home to hundreds of species, continues to experience sediment changes and reduced populations of larger organisms, though some smaller, more mobile creatures have shown signs of recovery.
Findings on Ecosystem Recovery
The collection of small polymetallic nodules from an eight-meter strip of the seabed has caused long-term disruption. “The evidence provided by this study is critical for understanding potential long-term impacts,” said expedition leader Daniel Jones. While some areas show minimal or no recovery, certain animal groups have begun to recolonize.
U.N. Talks on Deep-Sea Mining Regulations
Delegations from 36 countries are attending a council meeting of the U.N.’s International Seabed Authority (ISA) in Kingston, Jamaica. They are reviewing amendments to a 256-page draft mining code that could determine the future of deep-sea mining. Environmental groups and 32 governments, along with 63 large companies and financial institutions, are calling for a halt to mining activities.
Call for a Moratorium
Environmental advocates argue that deep-sea mining should be stopped before it begins. “This latest evidence makes it even more clear why governments must act now to stop deep-sea mining before it ever starts,” said Greenpeace campaigner Louise Casson.
Upcoming Mining Application and Industry Response
Despite ongoing regulatory discussions, Canada’s The Metals Company (TMC) plans to submit the first formal mining application in June. On Friday, delegates will debate potential actions if an application is submitted before regulations are finalized.
TMC insists that deep-sea mining has a smaller environmental impact compared to conventional terrestrial mining. “You just have to move a lot less material to get the same amount of metal,” said Craig Shesky, TMC’s chief financial officer. The company hopes the ISA will clarify the application process.
Conclusion
With no final text expected by the end of the current round of talks on March 28, the debate over deep-sea mining continues. The long-term effects highlighted in the study may influence future decisions as policymakers and environmental groups push for stricter regulations or a complete halt to mining activities.
“Long-Term Impact of Deep-Sea Mining Revealed in Study” “Long-Term Impact of Deep-Sea Mining Revealed in Study” “Long-Term Impact of Deep-Sea Mining Revealed in Study”