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nitrogen

Photo of the empty streets of Times Square.
Posted inEditors' Vox

Particulate Pollution and its Climate Impacts During the COVID-19 Pandemic

by Yuan Wang 24 February 202524 February 2025

The impacts of COVID-19 on short-lived pollutants highlight the predominant influence of the transportation sector and the resulting changes in regional climates and ecosystems.

Photo of a muddy river.
Posted inEditors' Highlights

Physics and Biology as Likely Stream Bedfellows

Eric Davidson, president-elect of AGU by Eric Davidson 18 November 202415 November 2024

Streambeds are key sites for removal of nutrients and other contaminants through microbial processes, but are limited by diffusion, which can now be modeled from streambed physical properties.

A person in a blue jacket is dwarfed by a gray cliffside of thawing permafrost.
Posted inResearch Spotlights

Thawing Permafrost Is Affecting Climate, but It’s Unclear by How Much

by Saima May Sidik 29 October 202429 October 2024

Models produce widely varying estimates of how ecosystems in the northern permafrost region are currently affecting the global greenhouse gas budget.

O Sol poente fica logo acima do horizonte e sob um céu parcialmente nublado, com um corpo de água em primeiro plano.
Posted inResearch Spotlights

Insights Biogeoquímicos de um Importante Rio Amazônico

Aaron Sidder, freelance science writer by Aaron Sidder 22 October 202422 October 2024

Sub-representados nos orçamentos globais de carbono, rios tropicais como o Tocantins, no Brasil, necessitam de estudos para estabelecer suas características de base face às crescentes mudanças globais.

Satellite image of the Barents Sea in the Arctic, with a blue phytoplankton bloom curving across the ocean
Posted inResearch Spotlights

The Many Adventures of Nitrogen in the Arctic Ocean

by Emily Dieckman 9 August 20248 August 2024

New research reviews how our atmosphere’s most abundant element cycles through the Arctic Ocean—and how climate change could affect the process.

Two people install a permeable reactive barrier next to open water.
Posted inNews

Reactive Barriers Could Keep Nitrate out of the Atlantic

by Alix Soliman 15 July 202415 July 2024

Microbes in mulch scrub nitrate from groundwater before it flows to the sea.

Permafrost as seen from above. The landscape is patchy and the color of dead grass, with a few areas of standing water. The sky in the distance is pale blue.
Posted inResearch Spotlights

Northern Permafrost Region Emits More Greenhouse Gases Than It Captures

by Saima May Sidik 15 April 202415 April 2024

Permafrost underlies a quarter of the Northern Hemisphere. A comprehensive analysis shows that the area may have shifted from a sink to a source of greenhouse gases, bringing a longtime prediction to fruition.

Illustration from the study.
Posted inEditors' Highlights

The Unexplored Microbial Life in Subterranean Estuaries

by Marguerite A. Xenopoulos 28 March 202427 March 2024

A new study reveals that microbial life in subterranean estuaries is threatened by anthropogenic activities.

Four graphs from the paper
Posted inEditors' Highlights

Using Satellite Observations for Attribution of Radiation Changes

by Suzana Camargo 11 March 20248 March 2024

Analysis of infrared satellite measurements identifies the climate response to an increase in greenhouse gases in the atmosphere.

Posted inNews

التربة المكهربة تزيد نمو النباتات

by Saugat Bolakhe 8 March 20248 March 2024

خمسة أيام من الكهرباء المنخفضة الجهد الموجهة إلى جذور النباتات الناشئة عززت نموها بأكثر من 50 بالمئة.

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