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nitrogen

Superficie cubierta de nieve con manchas oscuras de tierra al descubierto. Sale vapor de algunas manchas.
Posted inNews

A medida que el Ártico se calienta, los suelos pierden nutrientes clave

Javier Barbuzano, Science Writer by Javier Barbuzano 24 October 202524 October 2025

El cambio climático calienta tanto el aire y el océano, como el suelo, donde los procesos clave que determinan la fertilidad y la captura de carbono operan en un delicado equilibrio.

Tangled strands of mycorrhizal fungi with an appearance similar to plant roots.
Posted inResearch Spotlights

How Plant-Fungi Friendships Are Changing

by Saima May Sidik 22 October 202522 October 2025

A new framework shows how much carbon plants allocate to their endosymbionts and how that amount might change in the face of warming soil and rising carbon dioxide levels.

A beach in the Florida Keys
Posted inNews

Shallow Injection Imperfectly Filters Florida Wastewater

by Caroline Hasler 26 September 202526 September 2025

Injection of wastewater into shallow wells is meant to filter nutrients like nitrogen and phosphorus out of the wastewater. But a new study suggests that nutrients aren’t entirely eliminated—and may be polluting coastal waters.

Bison graze on green grass at Yellowstone National Park near a wire exclosure used to measure grasses.
Posted inNews

Free-Roaming Bison Graze Life into Grasslands

by Rebecca Owen 24 September 202524 September 2025

A new study suggests that Yellowstone’s herd of bison accelerates nutrient cycling, offering a glimpse into the North American plains of yesteryear.

A cluster of small, shiny red objects is attached to the roots of a plant.
Posted inNews

Nitrogen Needs Could Be Limiting Nature’s Carbon Capacity

by Rebecca Owen 25 August 202525 September 2025

A new study suggests that past calculations of biological nitrogen fixation were overestimated by up to 66%—and that farms growing nitrogen-fixing crops may be filling in the gaps, for better or worse.

A satellite image of a river becoming a fan-shaped delta and then draining into the ocean.
Posted inResearch Spotlights

Arctic Rivers Trade Inorganic Nitrogen for Organic

by Saima May Sidik 6 August 20256 August 2025

Climate change is shifting the makeup of a key nutrient in rivers across Russia, Alaska, and Canada, with the potential for ecosystem-wide impacts.

Snow-covered surface with dark patches of soil uncovered. Steam is rising from some patches.
Posted inNews

As the Arctic Warms, Soils Lose Key Nutrients

Javier Barbuzano, Science Writer by Javier Barbuzano 1 August 202524 October 2025

Climate change heats not only the air and the ocean but also the soil, where key processes that determine fertility and carbon sequestration operate in a fine-tuned balance.

Close-up of a partially surfaced humpback whale showing its baleen
Posted inNews

A Great Whale Conveyor Belt Transports Nutrients Across Oceans

Adityarup Chakravorty, freelance science writer by Adityarup Chakravorty 5 May 20255 May 2025

Baleen whales shift huge amounts of nutrients, including nitrogen, from high-latitude feeding waters to tropical breeding areas.

The floor of a foggy forest is covered in orange and brown leaves. In the middle distance, two researchers are taking measurements of a narrow stream.
Posted inResearch Spotlights

The “Surprising” Effect of Drying Headwaters on Nitrogen Dynamics

by Saima May Sidik 15 April 202515 April 2025

Contrary to predictions, spring rains caused a decrease in nitrogen at watershed outflows in Alabama.

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.

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Features from AGU Publications

Research Spotlights

How Plant-Fungi Friendships Are Changing

22 October 202522 October 2025
Editors' Highlights

New Evidence for a Wobbly Venus?

29 September 202525 September 2025
Editors' Vox

Publishing Participatory Science: The Community Science Exchange

20 October 202517 October 2025
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