Deep Sea Conservation Coalition
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Deep Sea Conservation Coalition
@deepseaconserve.bsky.social
The DSCC is campaigning to protect vulnerable deep-sea ecosystems & conserve deep-sea species. Follow us and take action to protect the incredible biodiversity of the sea.
deep-sea-conservation.org
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🆕 Today we are proud to launch the Knowledge Hub — a digital space to learn, share, and celebrate the vital role the deep ocean plays in life on Earth.

The deep sea is vital, mysterious, & vulnerable. The more we know, the better we can protect.

Dive in: wp.me/pfvfE3-XH #DeepDay
Deep-sea news alert! Our round-up brings you top stories from the ocean depths of the past few weeks. Check the images to stay updated. ⏭️

#DeepSeaNews
November 27, 2025 at 2:15 PM
Reposted by Deep Sea Conservation Coalition
Please join Michael Barnard, Lyle Trytten, and I for a public webinar to discuss their new report on whether seabed mining in the American Samoa region is economically viable and technically achievable. Tues 12/2 at 3 PM ET/12 PM PT/9 AM SST. Register here: us02web.zoom.us/webinar/regi...
November 25, 2025 at 3:10 PM
Reposted by Deep Sea Conservation Coalition
There are widespread concerns that deep-sea mining for metals will damage fragile ecosystems. But if mining ever goes ahead, hydrogen plasma could shrink the carbon footprint of smelting the metal ores
Have we found a greener way to do deep-sea mining?
There are widespread concerns that deep-sea mining for metals will damage fragile ecosystems. But if mining ever goes ahead, hydrogen plasma could shrink the carbon footprint of smelting the metal ores
www.newscientist.com
November 25, 2025 at 5:07 PM
New research led by @seaprinceaaron.bsky.social shows that 30 species of sharks, rays, and chimaeras are found in areas proposed for deep-sea mining, and nearly two-thirds are already threatened with extinction. https://doi.org/10.1016/j.cub.2025.09.019

#deepseascience #deepsea
November 24, 2025 at 5:14 PM
Reposted by Deep Sea Conservation Coalition
Last week @sciaena-ngo.bsky.social passed on the torch to @peweurope.bsky.social to guard the deep sea criter! The tiny octupus will come back to #NEAFC in 2026 where it hopes to see progress being made towards EBFM and real deep sea protection 🐙
#MakeEBFMWork #VMEs #Seamounts #OceanLifelines
November 20, 2025 at 3:28 PM
#COP30 helped to bring the ocean into the climate spotlight, but the #DeepSea is still at risk. We call on governments to support a moratorium on deep-sea mining and end destructive bottom trawling on seamounts.
deep-sea-conservation.org/cop30-saw-th...
#COP30 #DefendTheDeep
November 22, 2025 at 5:25 PM
Reposted by Deep Sea Conservation Coalition
We’ve released Shifting Tides, a new briefing paper unpacking what sits behind TMC’s sudden pivot to the U.S.
It’s a move being sold as progress but our analysis shows it introduces a tangle of political, legal, and reputational risks that can’t be ignored.

Full report in our Linktree. Read it now!
November 21, 2025 at 4:30 AM
Reposted by Deep Sea Conservation Coalition
It's live! Impacts of Deep-sea Mining on Migratory Species: Review and Knowledge Gaps.

In English, French, and Spanish. Annex I is the actual report.

www.cms.int/document/dee...
25.2.3 Deep-Sea Mining | Convention on the Conservation of Migratory Species of Wild Animals
www.cms.int
November 18, 2025 at 2:37 PM
Reposted by Deep Sea Conservation Coalition
Deep-sea mining in the Clarion-Clipperton Zone may release waste into midwaters that support diverse marine life. A study in Nature Communications finds such discharges could dilute key food particles and disrupt trophic links from zooplankton to large marine predators. go.nature.com/3Jm0C2U 🌊 🧪
November 19, 2025 at 2:43 AM
The Casper octopus gets its nickname from its lack of pigment cells, which gives it a ghostly appearance.

Discovered in 2016 more than 4,000 meters below the ocean surface off Hawai’i, it is the deepest-known octopus without fins.
November 18, 2025 at 11:41 AM
Reposted by Deep Sea Conservation Coalition
Check out my recent panel on the Science, Policy, and Cultural Implications of Deep Sea Mining

www.youtube.com/watch?v=zn-o...
The Science, Policy, and Cultural Implications of Deep Sea Mining (Sierra Club National Marine Team)
YouTube video by healthyoceans
www.youtube.com
November 17, 2025 at 4:46 PM
Reposted by Deep Sea Conservation Coalition
So… the new report on #DeepSeaMining outside American #Samoa basically says the quiet part out loud: the tech doesn’t work, the economics don’t work, and the strategy is 🤷. Turns out the real abyss isn’t the ocean floor, it’s the business model. Time to #KeepItInTheSeabed and #DefendTheDeep.
DSM Technical/Economic Feasibility Report — NOPC - National Ocean Protection Coalition
www.oceanprotectioncoalition.org
November 18, 2025 at 8:36 AM
#NEAFC missed an opportunity to protect deep-sea ecosystems at its annual meeting last week.

With #COP30 underway and the 2026 UN bottom fisheries review approaching, NEAFC must align with global biodiversity & climate goals. deep-sea-conservation.org/neafc-reject...
November 17, 2025 at 1:15 PM
The deep ocean is an enormous, natural carbon sink, storing massive amounts of carbon that would otherwise be in the atmosphere. Yet it can only continue to perform this critical role if it is healthy.

As #COP30 wakes into Ocean Day, we shout loud and clear: climate action starts with the deep.
November 17, 2025 at 10:38 AM
Reposted by Deep Sea Conservation Coalition
Trump sets sights on Pacific seafloor near the Marianas Trench.

Efforts to expand deep-sea mining are alarming scientists and Indigenous leaders, who worry mining risks fisheries and food security.

grist.org/global-indig...

#Mining #Fish #Food #Ocean
Trump sets sights on Pacific seafloor near the Marianas Trench
Efforts to expand deep-sea mining are alarming scientists and Indigenous leaders, who worry mining risks fisheries and food security.
grist.org
November 12, 2025 at 2:24 PM
As leaders gather in Belem for #COP30, this video from @deepstewardship.bsky.social & Leo Richards reminds us: the deep sea is our greatest climate ally.

Protecting it must be central to climate action.

Watch: https://youtu.be/Fjtwmt-gOJ8 @cop30brazil.bsky.social
The Deep Ocean: Our Greatest Climate Ally
YouTube video by Deep-Ocean Stewardship Initiative
youtu.be
November 13, 2025 at 6:19 AM
Reposted by Deep Sea Conservation Coalition
U.S. Needs Stronger Regulatory Oversight of Deep-Sea Mining

kleinmanenergy.upenn.edu/commentary/b...
U.S. Needs Stronger Regulatory Oversight of Deep-Sea Mining
Energy policy research from the University of Pennsylvania
kleinmanenergy.upenn.edu
November 11, 2025 at 4:10 PM
Reposted by Deep Sea Conservation Coalition
Deep-sea mining in the Clarion-Clipperton Zone may release waste into midwaters that support diverse marine life. A study in Nature Communications finds such discharges could dilute key food particles and disrupt trophic links from zooplankton to large marine predators. go.nature.com/3Jm0C2U 🌊 🧪
November 10, 2025 at 2:09 PM
Reposted by Deep Sea Conservation Coalition
On an expedition, the E/V Nautilus, a U.S government-funded vessel, mapped more than 14,000 square kilometers (5,400 square miles) of the Cook Islands’ seafloor and documented deep-sea biodiversity.

Environmental activists protested the expedition, arguing it would help accelerate deep-sea mining.
Expedition charts Cook Islands seafloor, amid scrutiny over mining motives
Thousands of meters below the ocean’s surface, a camera attached to a remotely operated vehicle captured a ghostly white creature gliding above a plain of polymetallic nodules — mineral-rich rocks…
news.mongabay.com
November 10, 2025 at 5:14 PM
Will #COP30 deliver?

Without protecting the deep sea, we endanger one of Earth’s greatest natural climate defenses! The deep ocean is heating up, acidifying, and losing oxygen faster than ever, and it's under threat from mining, trawling, and drilling.
November 10, 2025 at 4:06 PM
Reposted by Deep Sea Conservation Coalition
Mediterranean countries have missed a crucial chance to protect #DeepSea life from destructive fishing.
We urge them and @ec.europa.eu to show leadership & extend the #bottomtrawling ban to at least 800m in 2026— for marine life, fishers & the climate
#DefendTheDeep
europe.oceana.org/press-releas...
November 10, 2025 at 9:14 AM
Reposted by Deep Sea Conservation Coalition
Scientists warn deep-sea mining plumes could starve tiny marine life, disrupting food webs and threatening fisheries
Ocean mining may harm tiny species at heart of marine food webs
Scientists warn deep-sea mining plumes could starve tiny marine life, disrupting food webs and threatening fisheries
l.euronews.com
November 9, 2025 at 7:47 AM
A new groundbreaking study by researchers at the University of Hawai'i confirms that deep-sea mining could have devastating impacts well beyond the seafloor.

Read the full paper here: https://www.nature.com/articles/s41467-025-65411-w

#DefendTheDeep
November 6, 2025 at 1:23 PM
The ocean has shielded us from the worst of the climate crisis: absorbing over 90% of the excess heat and storing vast amounts of carbon.

Because 90% of the ocean is the deep sea, protecting the deep is essential for a healthier, more resilient planet.

#COP30 #DefendTheDeep
November 5, 2025 at 4:15 PM