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biogeosciences

Illustration of the surface of early Earth with an orange sky (with a meteorite streaking through it), a green ocean, a large island landmass, an impact crater, and underwater volcanoes.
Posted inScience Updates

Rethinking the Search for the Origins of Life

by Dustin Trail, Jamie Elsila, Ulrich F. Müller, Timothy Lyons and Karyn L. Rogers 4 February 20224 May 2022

Early Earth conditions and the chemistry that led to life were inextricably interwoven. Earth scientists and prebiotic chemists are working together in new ways to understand how life first emerged.

路边的沟渠可以在水进入水道之前有效地将水中的氮去除。图片来源: Corianne Tatariw
Posted inResearch Spotlights

路边沟渠可有效脱氮

by Sarah Derouin 7 September 202121 March 2022

研究人员比较了那些为森林、城市和农业用地排水的沟渠中微生物的脱氮潜力,发现路边沟渠是去除养分的重要区域。

Methane streams arising from the seafloor at a cold seep site offshore of Virginia
Posted inResearch Spotlights

Does the Priming Effect Happen Underwater? It’s Complicated

by Morgan Rehnberg 1 September 202129 September 2021

A new meta-analysis finds evidence that adding fresh organic material can increase decomposition rates, but when and why that happens remain unclear.

Roadside ditches can remove nitrogen from water before it gets to waterways.
Posted inResearch Spotlights

Roadside Ditches Are Effective at Nitrogen Removal

by Sarah Derouin 4 August 202121 March 2022

Researchers compared the nitrogen removal potential by microbes in ditches that drained forested, urban, and agricultural lands and discovered that roadside ditches are important areas for removing nutrients.

Una imagen satelital de un río atmosférico el 20 de febrero de 2017, que ayudó al oeste estadounidense a salir de una sequía de cinco años.
Posted inFeatures

¿Cómo afectará el cambio climático a los Estados Unidos en las próximas décadas?

by D. Wuebbles, D. W. Fahey and K. A. Hibbard 8 July 202128 September 2021

Un nuevo informe del gobierno de EE. UU. muestra que el clima está cambiando y que las actividades humanas conducirán a muchos más cambios. Estos cambios afectarán el nivel del mar, la frecuencia de las sequías, las precipitaciones severas y más.

OFP traps being recovered and deployed
Posted inResearch Spotlights

Particles at the Ocean Surface and Seafloor Aren’t So Different

by Jack Lee 10 June 202127 September 2022

Despite occurring on different scales, flux measurements throughout the water column share log-normal probability distributions.

A group of snailfish, animals that live in deep-sea ecosystems, feeding on a dead fish
Posted inNews

Sinking Fish May Fast-Track Mercury Pollution to the Deep Sea

by Carolyn Wilke 22 December 202018 March 2022

Isotopic analysis indicates that mercury found in deep-sea organisms may have an origin in carrion from near the surface.

A bunch of jellyfish
Posted inResearch Spotlights

El Zooplancton Gelatinoso Transfiere Una Cantidad Significativa de Carbono a las Profundidades del Océano

by Rachel Fritts 18 December 20209 November 2022

Un nuevo estudio muestra que las medusas y las salpas marinas no reciben el crédito que merecen por su papel en el ciclo del carbono en el océano.

World map showing trends of gross primary productivity, increasing in the northern latitudes and decreasing in the tropics
Posted inEditors' Highlights

Water Stress Controls the Capacity of the Terrestrial Carbon Sink

by A. Barros 17 December 202014 October 2021

Despite increased photosynthetic activity at northern latitudes in recent decades, plant productivity in tropical zones suffers because of water limitations.

Kelp in Monterey Bay, Calif., is seen from below the water surface
Posted inResearch Spotlights

Acidifying Oceans Could Get Help from Kelp

by Elizabeth Thompson 30 November 202010 February 2022

Forests of fast-growing kelp influence the chemistry of the water in which they live. A new study evaluates their potential to ameliorate ocean acidification in sensitive coastal ecosystems.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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