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Oceans

Satellite view image of the Gulf of Mexico and surrounding regions showing satellite-measured water temperature data represented in hues of blue, pink, and yellow
Posted inScience Updates

Ocean Current Affairs in the Gulf of Mexico

by James A. Austin Jr., Christopher Lowery, Ligia Pérez-Cruz, Jaime Urrutia-Fucugauchi and Anthony H. Knap 19 May 202519 May 2025

Multinational and multidisciplinary studies of the past and present of the Gulf’s Loop Current are helping to reveal what might be in store for coastal communities.

In the foreground is a beach covered in brownish seaweed, farther back is a body of water coated in chunks of floating ice, and in the distance are mountains and the sky.
Posted inResearch Spotlights

Seaweed Surges May Alter Arctic Fjord Carbon Dynamics

Sarah Stanley, Science Writer by Sarah Stanley 16 May 202516 May 2025

Climate change–accelerated seaweed growth could cause seaweed-dependent microbes to proliferate and consume more oxygen, leading to a rise in oxygen-starved zones.

A boat floats atop an inlet covered in brown Sargassum seaweed.
Posted inNews

Have We Finally Found the Source of the “Sargassum Surge”?

by Sarah Nelson 14 May 202514 May 2025

The complexity of modeling the tropical Atlantic makes identifying the source of the ongoing seaweed blooms difficult.

A satellite image of a river flowing into the ocean. The area where it meets the ocean is cloudy.
Posted inResearch Spotlights

The Uncertain Fate of the Beaufort Gyre

by Saima May Sidik 13 May 202513 May 2025

Climate models produce widely varying predictions for what will happen to this influential ocean current, but most models predict it will weaken or stop.

Close-up of a partially surfaced humpback whale showing its baleen
Posted inNews

A Great Whale Conveyor Belt Transports Nutrients Across Oceans

Adityarup Chakravorty, freelance science writer by Adityarup Chakravorty 5 May 20255 May 2025

Baleen whales shift huge amounts of nutrients, including nitrogen, from high-latitude feeding waters to tropical breeding areas.

World maps with simulations projected on them.
Posted inEditors' Highlights

A Leap Toward Next-Generation Ocean Models

by Florian Lemarié and Stephen M. Griffies 1 May 20251 May 2025

GPU-optimized ocean modeling achieves decade-long simulations in a day, enabling mesoscale-resolving climate simulations that open new opportunities for long-term planning in a changing climate.

Photos of atoll islands
Posted inEditors' Highlights

Coastal Models Quantify How Natural Islands Respond to Sea Level Rise

by Gonéri Le Cozannet 28 April 202525 April 2025

Coastal models enhance understanding of future flooding frequency on atoll islands, paving the way to explore the limits of adaptation in the face of rising sea levels and climate change.

The seafloor is blanketed n mounded rocks.
Posted inResearch & Developments

Trump Moves to Allow Seabed Mining in International Waters

by Emily Dieckman 25 April 20255 May 2025

A new executive order aims to establish the United States “as a global leader in seabed mineral exploration and development both within and beyond national jurisdiction.”

Small plastic fragments on sand and stones.
Posted inNews

Avalanches of Microplastics Carry Pollution into the Deep Sea

by Grace van Deelen 23 April 202523 April 2025

Scientists observed a once-theorized process ferrying microplastics into the deep ocean.

Satellite photo of a plankton bloom.
Posted inEditors' Highlights

Upwelling Near Fronts Initiate Offshore Phytoplankton Blooms

by Takeyoshi Nagai 17 April 202517 April 2025

A new study finds that phytoplankton blooms, often seen near the separation point of western boundary currents, are supported by nutrient supply upwelling and cross-shelf transport.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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