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carbon cycle

Drought maps of the western United States.
Posted inEditors' Highlights

A Satellite-Based Global Carbon Flux Product is Sensitive to Droughts 

by Jing Chen 8 July 20266 July 2026

A parsimonious ecosystem model constrained by data from NASA’s Soil Moisture Active and Passive mission generates a global daily carbon flux product that is highly sensitive to drought and pluvial events.

Satellite image of the Ganges River Delta.
Posted inEditors' Highlights

Shoreline Migration, Sediment Accumulation, and Blue Carbon Storage

by Eileen Hofmann 29 June 202629 June 2026

Autogenic processes of sediment storage and erosion regulate shoreline movement and therefore, where coastal wetlands develop, setting up subsurface areas of preserved organic matter, blue carbon.

Satellite image of the Mergui Archipelago off Myanmar, showing swirls of organic matter and sediment flowing into the ocean near coastal coral reefs.
Posted inNews

Have We Been Focusing on the Wrong Ocean Pollutants? This Study Maps What We’ve Been Missing

by Mariana Mastache-Maldonado 13 May 202613 May 2026

A global analysis of more than 2,300 seawater samples found that largely unmonitored industrial compounds are widespread across oceans and may be changing crucial biological and carbon cycling processes.

A satellite image of the ocean shows various shades of blue swirls.
Posted inResearch Spotlights

Eddy or Not: Do Eddies Actually Transport That Much Carbon?

by Nathaniel Scharping 17 April 20261 May 2026

New data from remote floats around the world indicate the eddy subduction pump is of only secondary importance.

A swirling, bright blue shape with soft edges appears against a background of dark blue in this bird’s-eye view of the ocean off the coast of France.
Posted inResearch Spotlights

Global Observations Reveal Rapid Reorganization of Ocean Nutrients

Sarah Stanley, Science Writer by Sarah Stanley 12 March 202612 March 2026

Data reveal that changes in nutrient levels vary depending on depth and distance from shore—and that these changes are happening more quickly than scientists realized.

Diagrams from the study.
Posted inEditors' Highlights

Severe 2023 Drought: Sinking Carbon Sink in the Amazon

Eric Davidson, president-elect of AGU by Eric Davidson 3 March 20263 March 2026

The Amazon forest has been a reliable carbon sink, soaking up some of humanity’s carbon emissions, but a severe drought in 2023 adds to growing concern that this ecosystem service is at risk.

A wave crashes onto a dark, rocky shore. Green rolling hills are in the distance.
Posted inResearch Spotlights

Our Ocean’s “Natural Antacids” Act Faster Than We Thought

Sarah Stanley, Science Writer by Sarah Stanley 30 January 202630 January 2026

New evidence from New Zealand suggests that calcium carbonate dissolution occurs not just over millennial timescales, but over annual and decadal ones too.

An American alligator surfaces in shallow bayou water in Louisiana.
Posted inNews

Alligators May Boost Carbon Storage in Coastal Wetlands

by Emil Siekkinen 29 January 20262 February 2026

Research suggests that American alligators help coastal wetlands retain more carbon, linking predator recovery in the southeastern United States to ecosystem function and climate processes.

Three people in bright yellow and orange jackets appear to be on a boat. They are reaching for a collection of tanks that will be lowered into the water. Two other ships are visible in the distance.
Posted inResearch Spotlights

Marine Snow Grows Faster and Fluffier as It Sinks

by Madeline Reinsel 16 January 202616 January 2026

New observations highlight how abiotic and biotic processes influence the tiny oceanic particles.

Illustration of earth observation satellites over Earth.
Posted inEditors' Highlights

Managing Carbon Stocks Requires an Integrated View of the Carbon Cycle

by Donald Wuebbles 9 January 20262 February 2026

The carbon cycle community calls for an integrated carbon observing system leveraging near-surface partial-column data to better resolve finer spatial scales where key processes and decisions occur.

Posts pagination

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

Features from AGU Publications

Research Spotlights

Typhoons Mix Up Bacteria and Biochemistry

10 July 20269 July 2026
Editors' Highlights

A Satellite-Based Global Carbon Flux Product is Sensitive to Droughts 

8 July 20266 July 2026
Editors' Vox

Small-Scale Indian Ocean Dynamics Underpin Marine Ecology and Climate

4 June 20263 June 2026
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