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Scalloped hammerhead sharks (Sphyrna lewini), photographed in Yonaguni, Japan.

Top ocean news stories of 2025 (commentary)

Alfredo Giron, Ana Spalding, Erin Skoczylas, Vanessa Constant 24 Dec 2025

A flood of logs post-Cyclone Senyar leaves Padang fishers out of work

Jaka Hendra Baittri 20 Dec 2025
A sewage outlet in Bangkok.

Marine heat waves and raw sewage combine to put human health at risk

Sean Mowbray 18 Dec 2025

COP30: What did it deliver for the ocean?

Elizabeth Claire Alberts 25 Nov 2025
Trawlers docked outside Sihanoukville. Screenshot from ‘Illegal fishing and land grabs push Cambodian coastal communities to the brink’ by Andy Ball / Mongabay.

Chaos on Cambodia’s Coast

Mongabay.com 3 Nov 2025
Missing fisheries observer Samuel Abayateye.

Two years later, no closure for family of missing Ghanaian fisheries observer

Awudu Salami Sulemana Yoda 29 Oct 2025

The world’s oceans face triple planetary crisis: Report

Bobby Bascomb 30 Sep 2025
North Pacific Ocean temperature anomalies on September 28, 2025. Positive values denotes areas warmer than average; negative values means cooler than average. Image via NOAA Coral Reef Watch.

Northeast Pacific endures fourth-largest marine heat wave on record

Shreya Dasgupta 30 Sep 2025
Small-scale fishers unloading buckets of fish from their boats in South Sulawesi, Indonesia.

24 years on, part one of WTO treaty curbing fisheries subsidies takes effect

Elizabeth Fitt 17 Sep 2025
Two walruses atop a small piece of floating Arctic sea ice.

No new record low for Arctic sea ice loss in 2025

Gloria Dickie 16 Sep 2025

Indonesia’s giant Java seawall plan sparks criticism & calls for alternatives

Basten Gokkon 11 Sep 2025
Island in the South Pacific, Fiji. Image by Rhett A. Butler/Mongabay.

Top court delivers a ‘huge’ climate win for island nations

Mike DiGirolamo 9 Sep 2025
A man walks past kelp in the Pacific Ocean at La Jolla Shores, San Diego.

Post-Blob, California’s kelp crisis isn’t going away

David Helvarg 9 Sep 2025
A school of barracuda in the Solomon Islands, a small island developing state in the Pacific Ocean.

Climate change is driving fish stocks from countries’ waters to the high seas: Study

Edward Carver 29 Aug 2025

Ghana passes landmark legislation to protect artisanal fisheries

Victoria Schneider 22 Aug 2025
Yellowfin tuna, one of the seven major commercial tuna species, attempt to outswim a seine net in the Seychelles. Fishing is the second largest industry on this small Pacific Island, and like many other Pacific Islands, it faces major revenue losses as tuna shift their migration patterns into the high seas due to climate change.

How will fisheries change in a hotter world? Experts share

Claudia Geib 13 Aug 2025

Coral restoration after devasting Deepwater Horizon spill shows promise

Mongabay.com 28 Jul 2025
Following the shipwreck, plastic pellets, also known as nurdles, began washing up along Kerala’s southern beaches.

Oil and plastic pollution from shipwreck raises concerns, legal scrutiny in India

Max Martin 9 Jul 2025
Paddle boarders over a coral reef in Indonesia.

Will temperate seas act as refuge for coral reefs? Not in time, study says

Edward Carver 8 Jul 2025
Julio and Isaac Blanco fish octopus along the coast of Asturias, Spain, using traditional nasas cages.

Two coasts, one struggle for octopus fishers battling overfishing and warming waters

Davide Mancini, Paola Margu 30 Jun 2025
A ray swims over seagrass in Australia.

As ocean acidification ramps up, experts call for speedy ocean protection

Sean Mowbray 26 Jun 2025
Coral reef in Vietnam.

Major coral loss in Vietnam’s first marine protected area: Study

Keith Anthony Fabro 20 Jun 2025
Industrial trawlers and small-scale fishers compete for space near the port of Dakar in Senegal.

UN Ocean Conference makes progress on protecting marine waters

Edward Carver 19 Jun 2025
Striped barracuda in Papua New Guinea.

PNG PM Marape rejects deep-sea mining even as provincial authorities try to revive project

Elizabeth Claire Alberts, John Cannon 16 Jun 2025

Global ocean acidification has passed safe planetary boundary threshold: Study

Bobby Bascomb 11 Jun 2025
French President Emmanuel Macron speaks during the High-Level inaugural dinner of the UN Ocean Conference (UNOC).

‘Madness’: World leaders call for deep-sea mining moratorium at UN ocean summit

Elizabeth Claire Alberts 11 Jun 2025
Abundant in the Sargasso Sea (above), sargassum has been blossoming in the Caribbean and on the Amazon shore.

New study dismisses Amazon River runoff as primary cause of sargassum blooms

Julian Reingold 11 Jun 2025
Bleached coral.

New method can detect nearly every coral genus in Japan from water samples

Edward Carver 5 Jun 2025
Fish in Samoa.

Samoa’s new marine spatial plan protects 30% of the country’s ocean

Claire Turrell 4 Jun 2025
A school of hammerhead sharks, Mikimoto, Japan. Masayuki Agawa / Ocean Image Bank

Annual ocean conference nets $9.1 billion for initiatives, despite US absence

Elizabeth Claire Alberts 5 May 2025

A Honduran reef stumps conservationists with its unlikely resilience

Fritz Pinnow 2 May 2025
A glass octopus, a nearly transparent species whose only visible features are its optic nerve, eyeballs and digestive tract.

The Metals Company applied to the U.S. for a deep-sea mining license

Elizabeth Claire Alberts 30 Apr 2025

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