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carbon cycle

Deciduous trees in the Odem Forest
Posted inResearch Spotlights

Paired Gas Measurements: A New Biogeochemical Tracer?

by Terri Cook 21 April 202228 July 2022

A technique that measures the ratio of carbon dioxide produced to oxygen consumed could improve predictions of soil’s response to climate change.

Close-up of a booted foot and the head of a hoe as dark soil is turned. Young corn plants are out of focus in the background.
Posted inFeatures

The Nutrient-Rich Legacy in the Amazon’s Dark Earths

by Kate Evans 23 March 20227 November 2024

Fertile terra preta soils were created through centuries of carefully managed land use. Scientists are taking cues from these soils to better sequester carbon and improve soil for agriculture.

SOCCOM float observing system with ship track, float trajectories, and communication of the float data back to land.
Posted inFeatures

A Global Ocean Biogeochemical Observatory Becomes a Reality

by Oscar Schofield, Andrea Fassbender, Maria Hood, Katherine Hill and Ken Johnson 17 March 202221 December 2022

Building on the successful Argo network of seafaring temperature and salinity sensors, work is underway to deploy 1,000 floats equipped to study ocean biogeochemistry in greater detail than ever.

Las partículas de carbono negro se esparcen por toda nuestra atmósfera, producidas por la quema de combustible o procesos industriales.
Posted inResearch Spotlights

¿Cuánto tiempo permanecen las partículas de carbono negro en la atmósfera?

Sarah Derouin, Science Writer by Sarah Derouin 8 March 202222 March 2022

Investigadores descubren cómo el carbono negro evoluciona de partículas hidrofóbicas a sitios de nucleación de nubes, removiendo eventualmente las partículas que absorben calor del cielo.

Image of marine snow, which is organic material sinking from upper waters to the deep ocean
Posted inResearch Spotlights

The Seasonality of Oceanic Carbon Cycling

Sarah Derouin, Science Writer by Sarah Derouin 3 March 20223 April 2023

Scientists uncovered how seasonal changes affect the amount and rate of carbon as it moves from the ocean’s surface to its depths.

Una explosión de luz solar sobre una Tierra nublada.
Posted inENGAGE, News

Pequeños cambios climáticos podrían verse magnificados por procesos naturales

Damond Benningfield, Science Writer by Damond Benningfield 1 March 202227 March 2023

Un nuevo estudio utiliza técnicas de modelado para descubrir cómo pequeños incidentes de calentamiento pueden convertirse en eventos hipertermales que duran miles de años.

Hydrothermal vent spewing black smoke.
Posted inEditors' Highlights

Bubble, Bubble, Toil and Trouble: Ocean Vents Spew Rubble

by Rose Cory 7 February 202215 March 2022

Hydrothermal vents in the ocean emit 6000-year-old carbon. The likely source? Ocean crust.

A sunset over the ocean is seen through rope netting on a ship
Posted inScience Updates

Mapping a River Beneath the Sea

by Sebastian Krastel and David C. Mosher 28 January 202214 March 2024

A recent expedition mapped one of the world’s longest submarine channels, revealing previously undiscovered physical features and raising questions about its unusual origin and shape.

A shovel buried in the dirt, with plants in the background
Posted inNews

Soil Texture Affects How Carbon Is Stored Underground

Katherine Kornei, Science Writer by Katherine Kornei 18 January 20221 April 2022

Using measurements from more than 9,300 soil samples collected worldwide, researchers have shown that carbon storage in soils is affected by both air temperature and soil texture.

An elephant eats grasses in Kruger National Park, South Africa.
Posted inENGAGE, News

Large Herbivores May Improve an Ecosystem’s Carbon Persistence

Rishika Pardikar, Science Writer by Rishika Pardikar 14 January 202224 January 2024

The grazing habits of wild animals like elephants and boars enable long-term carbon storage, according to new research that stresses the need to align climate mitigation goals with biodiversity conservation.

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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

Scientists Zero In on Tiny Particles to Improve Weather and Air Quality Forecasts

2 October 20262 October 2026
Editors' Highlights

Reducing Uncertainty in Groundwater Models Using Airborne Geophysics

28 September 202625 September 2026
Editors' Vox

Where Fire Ends, Chemistry Begins

30 September 202630 September 2026
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