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nutrients

Air bubbles of different sizes rise through water.
Posted inNews

Scientists Discover a Way of Forming Suspended Layers of Sediment

Katherine Kornei, Science Writer by Katherine Kornei 1 August 20232 August 2023

Laboratory experiments suggest that underwater gas eruptions—due to the venting of gas hydrates, for example—could trigger the formation of layers of suspended sediment in the ocean.

A bright green, oval-shaped organism with short hairs protruding from its exterior is surrounded by smaller circular organisms.
Posted inNews

Ambidextrous Microbes May Pump Out CO2 as Temperatures Rise

Katherine Kornei, Science Writer by Katherine Kornei 7 July 20237 July 2023

Certain microbes that engage in both photosynthesis and predation are more likely to do the latter as the planet warms, resulting in a net release of carbon dioxide.

Close-up of star moss on a black rock
Posted inNews

Mosses Play Key Roles in Ecosystems from Tropics to Tundra

by Carolyn Wilke 29 June 202329 June 2023

A global survey of mosses growing on soil found that the somewhat underappreciated plants cover a vast area and perform tasks such as sequestering carbon.

A group of penguins stand on ground streaked with yellow-white droppings. The sea is in the background.
Posted inNews

Penguin Poop May Flush Iron into the Southern Ocean

by Carolyn Wilke 23 May 202323 May 2023

Nutrients from the seabirds’ guano fuels the growth of carbon-storing phytoplankton, but penguin populations have plunged in the past 4 decades.

A photo angled from above of a small white bird and a white egg in a nest of twigs.
Posted inNews

Harpy Eagles Concentrate Precious Nutrients in the Amazon

Adityarup Chakravorty, freelance science writer by Adityarup Chakravorty 10 May 202325 May 2023

Amazon soils are usually low in the nutrients that plants covet, but harpy eagles can create local hot spots with their poop and prey.

Satellite imagery shows Tropical Cyclone Oma in white hovering over the South Pacific in blue, leaving a phytoplankton bloom in its wake.
Posted inResearch Spotlights

Tropical Cyclone Triggered Record Algal Bloom in the South Pacific

by Kirsten Steinke 2 May 20232 May 2023

In 2019, Tropical Cyclone Oma hovered over the Coral Sea in the South Pacific, leaving a massive algae bloom in its wake.

Maps of the Great Lakes region using different colors to show nutrient concentrations.
Posted inEditors' Highlights

Analyzing Sources of Pollution in the Great Lakes

by Luis Lassaletta 11 April 20237 June 2023

Understanding how agriculture and land use affect nutrient flows and concentrations in the vast area of the Great Lakes is an essential step to developing sustainable management strategies.

Imagen de nieve marina, el material orgánico que se hunde desde las aguas superficiales hasta la profundidad del océano.
Posted inResearch Spotlights

La estacionalidad del ciclo del carbono oceánico

Sarah Derouin, Science Writer by Sarah Derouin 3 April 2023

Un grupo de científicos investigaron el impacto de los cambios estacionales en la cantidad y velocidad del carbono que viaja desde la superficie al océano profundo.

A tuft of switchgrass with its associated roots is displayed horizontally on a black background.
Posted inResearch Spotlights

The World’s Roots Are Getting Shallower

by Rebecca Dzombak 17 November 202217 November 2022

Root-filled soils are hot spots of nutrient cycling and carbon storage. New research finds that the world has lost millions of cubic meters of rooted soil volume—and we’re on track to lose much more.

A sunset casts pink hues onto clouds over a waterway, with trees silhouetted against the light.
Posted inResearch Spotlights

Measuring the Ins and Outflows of Estuaries

by Saima May Sidik 8 November 20228 November 2022

Scientists modeled monitoring schemes in three different estuaries to determine instrument layouts that could effectively and efficiently measure exchanges of salt water and freshwater.

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Features from AGU Publications

Research Spotlights

Wintertime Spike in Oceanic Iron Levels Detected near Hawaii

11 December 202511 December 2025
Editors' Highlights

Frictional Properties of the Nankai Accretionary Prism

11 December 20259 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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