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Global Biogeochemical Cycles

A white water tower against a blue sky with trees in the foreground.
Posted inResearch Spotlights

U.S. Public Water Supply Is a Local Source of Phosphorus Pollution

by Rachel Fritts 16 March 202316 March 2023

Excess phosphorus may reach U.S. rivers, lakes, and groundwater through water main leaks and outdoor water use.

Una nube de emisiones proveniente de torres industriales junto al mar se eleva al cielo brumoso de un atardecer dorado.
Posted inResearch Spotlights

El dióxido de carbono antropogénico es rastreado hacia el océano

by Aaron Sidder 15 March 202315 March 2023

Con ayuda de un modelo de circulación oceánica, un equipo de investigadores logró etiquetar y rastrear el carbono emitido antropogénicamente para determinar si su destino es la atmósfera o el océano.

一个穿着潜水衣的人涉水穿过水下的樽海鞘群。
Posted inResearch Spotlights

喷气推进的被囊动物在海洋碳循环中的作用

by Aaron Sidder 17 February 202322 February 2023

新研究表明,广泛分布的胶质浮游动物的大量繁殖,连同它们的粪便、每日的垂直迁移和它们的尸体一起,增加了海洋的碳输出。

A person in a wetsuit wades through an underwater cloud of salps.
Posted inResearch Spotlights

Jet-Propelled Tunicates Pump Carbon Through the Oceans

by Aaron Sidder 19 January 202317 February 2023

New research reveals that blooms of the widespread gelatinous zooplankton—along with their feces, daily vertical migrations, and carcasses—increase marine carbon export.

Emissions rise from industrial towers along a waterfront in front of a hazy orange sunset.
Posted inResearch Spotlights

Tracing Anthropogenically Emitted Carbon Dioxide into the Ocean

by Aaron Sidder 17 October 202215 March 2023

Researchers labeled anthropogenically emitted carbon and tracked it with an ocean circulation model to determine whether it winds up in the sky or sea.

Aerial view of a large wetland area, with part of an airplane wing in the foreground
Posted inResearch Spotlights

Tropical Wetlands Emit More Methane Than Previously Thought

by Rachel Fritts 13 September 20225 October 2022

Climate models could be vastly underestimating methane emissions from the world’s tropical wetlands, according to observational surveys of wetlands in Zambia.

Iceberg in the Southern Ocean
Posted inResearch Spotlights

A New Look at Preindustrial Carbon Release from the Deep Ocean

by Sarah Stanley 18 August 202218 August 2022

New research could help inform future studies of how the release of carbon dioxide from the Southern Ocean might affect global climate change.

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

by Sarah Derouin 3 March 20223 March 2022

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

Photos of clouds, forest and sea.
Posted inEditors' Vox

Inventorying Earth’s Land and Ocean Greenhouse Gases

by Benjamin Poulter, Ana Bastos, Josep G. Canadell, Philippe Ciais, Nicolas Gruber, Judith Hauck, Robert B. Jackson, Masao Ishii, Jens Daniel Müller, Prabir K. Patra and Hanqin Tian 17 February 20225 December 2022

A new special collection in AGU journals will present findings from the Second REgional Carbon Cycle Assessment and Processes (RECCAP2) study with a decade of data on greenhouse gas growth.

Photograph of Isaac Santos
Posted inEditors' Vox

Introducing the New Editor in Chief of Global Biogeochemical Cycles

by Isaac Santos 24 January 202221 October 2022

Find out about the person taking the helm of Global Biogeochemical Cycles and his vision for the coming years.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
Earth’s Future
“How to Build a Climate-Resilient Water Supply”
By Rachel Fritts

EDITORS' HIGHLIGHTS
AGU Advances
“How Do Atmospheric Rivers Respond to Extratropical Variability?”
By Sarah Kang

EDITORS' VOX
Reviews of Geophysics
“Rare and Revealing: Radiocarbon in Service of Paleoceanography”
By Luke C. Skinner and Edouard Bard

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