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Oceans

Two people on the deck of a boat around sunset reach for an instrument—almost as tall as they are—being raised up over the side of the ship from underwater.
Posted inNews

Cruise to Measure Gulf Dead Zone Faces Stormy Funding Future

by Elise Plunk 5 September 20258 September 2025

Funding cuts are affecting The Pelican’s annual hypoxia cruise to investigate the environmental conditions off the coast of Louisiana.

Three researchers stand on a cloudy beach, examining a set of lidar equipment.
Posted inNews

Inside a Georgia Beach’s High-Tech Fight Against Erosion

by Emily Jones 2 September 20252 September 2025

Armed with drones and lasers, scientists are creating detailed 3D maps of Tybee Island’s shifting shoreline.

Figure from the paper.
Posted inEditors' Highlights

Equatorial Deep Ocean Response to the Madden-Julian Oscillation

by Xin Wang 27 August 202526 August 2025

The changes in Madden-Julian Oscillation wind can trigger a response in the deep equatorial Pacific and Indian Ocean.  

A satellite image shows the coast of the Los Angeles area in January 2025. A plume of smoke is seen over the Pacific Ocean.
Posted inFeatures

Scrambling to Study Smoke on the Water

by Grace van Deelen 26 August 202526 August 2025

Timely action shows the impact of urban fires on freshwater and marine ecosystems.

Satellite images with lidar data.
Posted inEditors' Highlights

NASA Mission Creates a New Global Coastal Bathymetry Product

by Cathleen Jones 14 August 202514 August 2025

NASA’s Ice, Cloud, and land Elevation Satellite 2 (ICESat-2) mission recently released a new shallow water bathymetry product, which has already delivered data for 13.7 million kilometers of coastal waters.

A large iceberg floats in blue Arctic Ocean water.
Posted inNews

Arctic Ice Shelf Theory Challenged by Ancient Algae

by Andrew Chapman 13 August 202513 August 2025

Chemical signatures of marine organisms reveal that seasonal sea ice, not a massive ice shelf, persisted in the southern Arctic Ocean for 750,000 years.

4 maps from the study.
Posted inEditors' Highlights

Decadal Forecasts with a SMYLE

by Kristopher B. Karnauskas 13 August 202511 August 2025

Scientists use a large suite of simulations with an established climate model to predict the Pacific Decadal Oscillation up to one year in advance, but El Niño can still get in the way.

Imagen de tomografía computarizada en blanco y negro de un núcleo de coral.
Posted inScience Updates

Un repositorio de núcleos de coral diseñado para la transparencia y accesibilidad

by Avi Strange, Oliwia Jasnos, Lauren T. Toth, Nancy G. Prouty and Thomas M. DeCarlo 8 August 20253 October 2025

CoralCT archiva datos originales y procesados de núcleos de corales y arrecifes, preservando información valiosa sobre cómo los corales responden a cambios medioambientales.

An image of a slab of coral. Dark and light bands can be seen, which correlate with growing seasons.
Posted inNews

Coral Cores Pinpoint Onset of Industrial Deforestation

by Grace van Deelen 7 August 20251 January 2026

Trace elements in coral reefs provide a timeline of how Borneo’s rainforests have been altered by industry.

Satellite image of green swirls in blue water next to a snow-covered coast
Posted inNews

Iron Emissions Are Shifting a North Pacific Plankton Bloom

by Mark DeGraff 6 August 20256 August 2025

Some of the iron emitted by industrial activity in East Asia is carried by winds into the North Pacific, where it nourishes iron-hungry phytoplankton.

Posts pagination

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A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

Features from AGU Publications

Research Spotlights

Denitrification Looks Different in Rivers Versus Streams

16 January 202616 January 2026
Editors' Highlights

Kyanite Exsolution Reveals Ultra-Deep Subduction of Continents

23 January 202622 January 2026
Editors' Vox

Bridging the Gap: Transforming Reliable Climate Data into Climate Policy

16 January 202616 January 2026
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