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We May Know Less About The Deep Sea Than The Moon. Should It Be Mined?

October 21, 2021 — Much remains unknown about the long-term effects of deep-sea mining in the Pacific and its role in the greater climate crisis. Given that, activists, governments and the private sector support a 10-year moratorium on deep-sea mining.

Yet the Republic of Nauru has made its intentions clear: Within two years, it will start mining the deep sea of the Clarion Clipperton Zone.

The CCZ — between Hawaii and Kiribati, extending eastward towards Mexico — is just one area of interest for mining outfits, covering 4.5 million square kilometers of the Pacific.

The area is filled with seamounts and deep-sea mountains, home to minerals including manganese, cobalt and several other elements integral to batteries that power smartphones and electric vehicles, among other things.

Governments, such as the Cook Islands, along with private mining outfits, are also looking to do exploratory work in their own waters, which has caused concern due to the unknown fallout.

Read the full story at the Honolulu Civil Beat

 

Critics Question the Climate Benefits of Deep Sea Mining

September 22, 2021 — Few people have ever heard of the tiny country of Nauru. Even fewer ever think about what happens at the bottom of the world’s oceans. But that may soon change. The seafloor is thought to hold trillions of dollar’s worth of  metals and this Pacific-island nation is making bold moves to get a jump on the global competition to plumb these depths.

The targets of these companies are potato-sized rocks that scientists call polymetallic nodules. Sitting on the ocean floor, these prized clusters can take more than three million years to form. They are valuable because they are rich in manganese, copper, nickel, cobalt that are claimed to be essential for electrifying transport and decarbonizing the economy amid the green technological revolution that has emerged to counter the climate crisis.

To vacuum up these treasured chunks requires industrial extraction by massive excavators. Typically 30 times the weight of regular bulldozers, these machines are lifted by cranes over the sides of ships, then dropped miles underwater where they drive along the seafloor, suctioning up the rocks, crushing them and sending a slurry of crushed nodules and seabed sediments from 4,000-6,000 meters depth through a series of pipes to the vessel above. After separating out the minerals, the processed waters, sediment and mining ‘fines’ (small particles of the ground up nodule ore) are piped overboard, to depths as yet unclear.

But a growing number of marine biologists, ocean conservationists, government regulators and environmentally-conscious companies are sounding the alarm about a variety of environmental, food security, financial, and biodiversity concerns associated with seabed mining.

Read the full story at the Maritime Executive

 

Why the death of coral reefs could be devastating for millions of humans

November 10th, 2016 — Coral reefs around the globe already are facing unprecedented damage because of warmer and more acidic oceans. It’s hardly a problem affecting just the marine life that depends on them or deep-sea divers who visit them.

If carbon dioxide emissions continue to fuel the planet’s rising temperature, the widespread loss of coral reefs by 2050 could have devastating consequences for tens of millions of people, according to new research published Wednesday in the scientific journal PLOS.

 To better understand where those losses would hit hardest, an international group of researchers mapped places where people most need reefs for their livelihoods, particularly for fishing and tourism, as well as for shoreline protection. The researchers combined those maps with others showing where coral reefs are most under stress from warming seas and ocean acidification.

Countries in Southeast Asia such as Indonesia, Thailand and Philippines would bear the brunt of the damage, the scientists found. So would coastal communities in western Mexico and parts of Australia, Japan and Saudi Arabia. The problem would affect countries as massive as China and as small as the tiny island nation of Nauru in the South Pacific.

Read the full story at The Washington Post

PNA Tuna Fishing Nations Agree to Keep Vessel Day Managment Scheme

April 12, 2016 — SEAFOOD NEWS — A Pacific fisheries bloc has unanimously decided to maintain a management system that it says has increased revenue to the islands by more than 500 percent in the past six years.

The Parties to the Nauru Agreement’s Vessel Day Scheme allocates its member countries a number of days per vessel that they can allocate to distant water nations which want to purse seine fish for tuna in their waters.

It is seen as a means of increasing returns and ensuring greater sustainabiliity.

Non-island nations are advocating different approaches, including New Zealand, which this week is promoting its catch based management system to Pacific fisheries ministers.

But the PNA members agreed last week to stay with their VDS system after a review by a New Zealand based company called Toroa Strategy Ltd.

It concluded the VDS is a fully functioning fisheries management regime without peer for its class of fishery.

It said there was no clear benefit from changing to a catch scheme now or in the near future.

The New Zealand meetings are part of the Pacific Island’s Roadmap for Sustainable Pacific Fisheries but the strategy company says Pacific leaders have acted precipitately.

It said they were putting the cart before the horse by opting immediately for a catch-based system.

PNA controls waters where 50 percent of the global supply of skipjack tuna is caught.

Its members are Papua New Guinea, Solomon Islands, Tuvalu, Kiribati, the Marshall Islands, Nauru, the Federated States of Micronesia and Palau.

Tokelau is not a full member, but has joined PNA in enforcing the VDS in its fishery.

After detailing the pros and cons of both effort and quota limit systems, the independent review said there was no evidence the present sustainability performance of the VDS was inferior to the quota management system, given the nature and current state of the tuna fishery.

It said the current total catch level in PNA waters was sustainable and the management system in place works.

The company said the purse seine VDS was a very successful fisheries management regime by any real world standard.

This story originally appeared on Seafoodnews.com, a subscription site. It is reprinted with permission.

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