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nutrients

A drone image of a piece of mountainous land jutting out into the blue ocean.
Posted inResearch Spotlights

How Algae Helped Some Life Outlast Extinction

by Rebecca Owen 13 November 202513 November 2025

Cooler waters near Norway’s north provided a refuge for phytoplankton during the Great Dying, a new study suggests.

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 researcher wearing waders stands ankle deep in muddy sediment, bending over to extract a water sample from the sediment using a plastic syringe.
Posted inScience Updates

Tracing Iron’s Invisible Transformations Just Beneath Our Feet

by Andrew R. C. Grigg, Katrin Schiedung, Joëlle Kubeneck and Ruben Kretzschmar 19 September 202519 September 2025

A new method that adds synthetic iron minerals to soils sheds light on hard-to-observe soil and sediment processes and may have a host of other applications in the Earth sciences and beyond.

Photo of a tree with water running down its bark.
Posted inEditors' Vox

Waterworks on Tree Stems: The Wonders of Stemflow

by Gabriel G. Katul, Bavand Keshavarz, Amirreza Meydani and Delphis F. Levia 21 August 202520 August 2025

Stemflow hydrodynamics offers rich physics that seeks to describe water and matter cycling within the atmosphere-biosphere-geosphere with implications for water resources planning.

A square research plot with no snow, surrounded by a snowy forest
Posted inNews

Warming Winters Sabotage Trees’ Carbon Uptake

by Grace van Deelen 31 July 202531 July 2025

In temperate forests, the biomass-building benefits of warmer growing seasons are offset by damaging variability in winter weather—a disparity that climate models may miss.

Photo of a valley with a dark water tracks leading to a sinuating river.
Posted inEditors' Vox

Water Tracks: The Veins of Thawing Landscapes

by Joanmarie Del Vecchio and Sarah G. Evans 25 June 202525 June 2025

Tracing and tracking change in permafrost flowpaths could reveal the dynamics of warming poles.

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.

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.

Satellite view of swirling blooms of green algae and cyanobacteria in the Baltic Sea near the Swedish island of Gotland
Posted inFeatures

Could Bubbling Oxygen Revitalize Dying Coastal Seas?

by Caroline P. Slomp and Andreas Oschlies 1 May 20257 May 2025

Reoxygenation approaches have shown some success in lakes, but their potential risks must be examined carefully before they’re implemented as solutions to improve the health of coastal waters.

Satellite photo of a plankton bloom.
Posted inEditors' Highlights

Upwelling Near Fronts Initiate Offshore Phytoplankton Blooms

by Takeyoshi Nagai 17 April 202517 April 2025

A new study finds that phytoplankton blooms, often seen near the separation point of western boundary currents, are supported by nutrient supply upwelling and cross-shelf transport.

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Features from AGU Publications

Research Spotlights

Key Driver of Extreme Winds on Venus Identified

19 November 202519 November 2025
Editors' Highlights

From Mantle Flow to River Flow: Shaping Earth’s Surface from Within

20 November 202519 November 2025
Editors' Vox

Echoes From the Past: How Land Reclamation Slowly Modifies Coastal Environments

19 November 202519 November 2025
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