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carbon

Map of Lake Geneva and surrounding catchments.
Posted inEditors' Highlights

Organic Radiocarbon Reveals its Inorganic Ancestry in Lake Geneva

by Maximilian Lau 6 May 20256 May 2025

Organic and inorganic radiocarbon ages resolve the origin and dynamics of carbon in the largest natural lake of Western Europe.

Fine-grained sand on the ocean floor, marked by the rippling movement of currents
Posted inResearch Spotlights

Mapping the Ocean Floor with Ancient Tides

Aaron Sidder, freelance science writer by Aaron Sidder 6 May 20256 May 2025

A new study uses a paleotidal model to trace the formation of carbon-rich mud deposits over thousands of years.

Diagram from the study.
Posted inEditors' Highlights

Rock Organic Carbon in Soils: Recycled or Just Passing Through

by Susan Trumbore 5 May 20251 May 2025

It’s often assumed that all soil organic carbon ultimately derives from recent vegetation, but researchers argue that carbon inherited from parent rocks can be important and deserves more focus.

A glacier curves between two dark mountains beneath a blue sky.
Posted inResearch Spotlights

Glaciers Offer Clues into the Path of Fossil Fuel Pollution

by Rebecca Owen 28 April 20255 May 2025

New research traces the origin of carbon deposited from the atmosphere onto glaciers.

Una montaña, un glaciar y el cielo azul se ven refleados en un tranquilo lago.
Posted inResearch Spotlights

Los lagos y estanques de Alaska revelan los efectos del derretimiento del permafrost

by Saima May Sidik 21 March 202521 March 2025

Un nuevo conjunto de datos proporciona un método poderoso para rastrear fácilmente los cambios en el permafrost.

Photo of a river
Posted inEditors' Highlights

Carbon-Nutrient Ratios Drive Nitrate Removal in Mediterranean Streams

by Kyle Boodoo and Suzanne Tank 19 March 202519 March 2025

The type of organic matter, and ratio of nutrients to carbon, impact the ability of heterotrophic bacteria to effectively remove certain forms of nitrogen pollution (nitrate) from streams.

Illustration of the driving forces of erosion.
Posted inEditors' Vox

Erosion: An Overlooked Contributor to the Carbon Cycle

by Haiyan Zheng and Chiyuan Miao 13 March 202512 March 2025

Since physical and chemical erosion yield comparable carbon fluxes, studying both together is essential to avoid biases in erosion-driven carbon flux estimates.

A mountain, glacier, and blue sky are reflected in the surface of a calm lake.
Posted inResearch Spotlights

Alaska’s Lakes and Ponds Reveal Effects of Permafrost Thaw

by Saima May Sidik 19 February 202521 March 2025

A new dataset provides a powerful method for easily tracking changes in permafrost.

绿油油的森林地面上生长着白色的桦树,许多树都伸出了照片的框架之外。
Posted inResearch Spotlights

科学家公布欧洲新的温室气体收支

Aaron Sidder, freelance science writer by Aaron Sidder 14 February 202514 February 2025

为欧洲制定的温室气体收支突出了整个大陆的碳源和碳汇,可作为未来几年的基准。

Gray photo of a crater on the dwarf planet Ceres
Posted inResearch Spotlights

Ceres’s Organics Might Not Be Homegrown After All

Sarah Stanley, Science Writer by Sarah Stanley 10 February 202510 February 2025

Scientists have been unable to determine whether the dwarf planet’s organics were produced by its own chemical processes or delivered by asteroids. New evidence implicates asteroids.

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Features from AGU Publications

Research Spotlights

Mapping the Ocean Floor with Ancient Tides

6 May 20256 May 2025
Editors' Highlights

First Benchmarking System of Global Hydrological Models

7 May 20257 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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