Ocean warming News

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Corals and fish in Lighthouse Reef atoll, Belize.

Restoration, protection aim to save Belize’s coral reef from extreme heat and disease

Marco Lopez 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 brittle star (Gorgonocephalus sp.), recognizable by its numerous abundantly branched arms, attached to a white coral (Desmophyllum pertusum).

First-ever assessment highlights threats to Atlantic cold-water corals

Keith Anthony Fabro 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
Clown anemonefish live symbiotically with anemone

When heat waves hit, clownfish shrink to survive, study finds

Keith Anthony Fabro 18 Jun 2025
A snapper hunting silver fish in a mangrove patch.

One-two punch for mangroves as seas rise and cyclones intensify

Elizabeth Fitt 9 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
Nontoxic dye released from an artificial upwelling experiment off the Canary Islands. That experiment, set to last weeks, ended after just one day when the pump failed. “To most of us that proved … the technical readiness of this approach is not there,” says Michael Sswat, a postdoctoral researcher at GEOMAR Helmholtz Centre for Ocean Research, who was part of the research team.

Marine artificial upwelling, problematic climate solution slow to advance

Sean Mowbray 2 Jun 2025

A Honduran reef stumps conservationists with its unlikely resilience

Fritz Pinnow 2 May 2025

Scientists warn coral restoration can’t keep pace with global reef collapse

Elizabeth Fitt 29 Apr 2025
Women in Timbul Seloko village, Central Java, help with the permeable dam project.

In an ancient Javanese sultanate, coastal women battle climate fallout

Irfan Maulana 16 Apr 2025
Maoz Fine and Naama-Rose Kochman visit the lab’s coral nursery and monitoring station near Eilat.

Even the Gulf of Aqaba’s ‘supercorals’ bleached during 2024 heat wave

Ilan Ben Zion 14 Apr 2025
An Uggubseni resident.

In Panama, Indigenous Guna prepare for climate exodus from a second island home

Euan Wallace 10 Apr 2025
A fisherman repairs his boat on a beach in Soomar Goth, Karachi.

In Pakistan, sea level rise & displacement follow fisherfolk wherever they go

Waqas Alam Angaria 28 Mar 2025
Polar bear mother with two cubs on a snowy sandbank in northern Alaska.

Polar sea ice continues steep decline; but will a troubled world notice?

Elizabeth Devitt 27 Mar 2025
A ceremonial glacier graveyard in Iceland.

With climate change, cryosphere melt scales up as a threat to planetary health

Sean Mowbray 21 Mar 2025
A moray eel in the coral reefs of the Daymaniyat Islands, Oman.

2024’s top ocean news stories (commentary)

Alfredo Giron, Ana K. Spalding, Andrés Cisneros-Montemayor, Asha de Vos, Cinda P. Scott, Josheena Naggea, Juan José Alava, Olivia Milloway, Rita Maria el Zaghloul 8 Jan 2025
The world’s oceans naturally absorb vast amounts of atmospheric carbon dioxide.

Electrochemical removal of ocean CO2 offers potential — and concerns

Sean Mowbray 20 Dec 2024

In Mexico, scientists race to save Marietas Islands’ corals from ocean warming

Agustín del Castillo 30 Sep 2024
A group of chinstrap penguins on pack ice on Seal Island in Antarctica.

Arctic sea ice hits summer minimum; Antarctic hovers at new winter lows

Elizabeth Devitt 24 Sep 2024
A jellyfish swims in the sun in the mangroves.

Inaugural Planetary Health Check finds ocean acidification on the brink

Sean Mowbray 23 Sep 2024
Marcel König and Natascha Oppelt (both from the University of Kiel, Germany) measuring melt pond optical properties during RV Polarstern campaign PASCAL, north of Svalbard in June 2017.

Arctic melt ponds influence sea ice extent each summer — but how much?

Michael C. Bradbury 20 Aug 2024
A sea turtle in Ningaloo Reef, Australia.

As waterbodies lose oxygen, are we breaching a potential planetary boundary?

Elizabeth Claire Alberts, Glenn Scherer 13 Aug 2024
An ice shelf and the sea in Greenland.

High-resolution maps reveal surprises about how ice shelves melt

Abhishyant Kidangoor 7 Aug 2024
A mariscadora uses a clam rake to dredge for shellfish off Cambados in Galicia. Image by Naomi Mihara for Mongabay

In northern Spain, climate change is killing shellfish — and women’s livelihoods

Naomi Mihara, Natalie Donback 29 Jun 2024

Indigenous Alaskans drive research in a melting arctic

Gabe Allen 4 Jun 2024
Alson Kelen on a U.S. airstrip runway. Image by Mark Klett/Cape Farewell.

Marshallese worries span decades — first nuclear tests, now sea-level rise

Amélie David 29 May 2024
A multilayered lenticular cloud hovers near Mount Discovery, a volcano about 70 km (44 mi) southwest of McMurdo Station in Antarctica.

Polar warning: Warming temperatures mean more than melted ice

Elizabeth Devitt 27 May 2024
Two polar bear siblings play-fighting in the wild on Barter Island, Alaska.

Report ranks 60+ ideas, including geoengineering, to save the Arctic

Jeremy Hance 21 May 2024

‘Our life support system is at risk’: Interview with ‘Her Deepness’ Sylvia Earle

Elizabeth Claire Alberts 3 May 2024

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