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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.

Una distintiva nube en forma de hongo producto de una prueba nuclear se alza en un cielo azul oscuro y nubes atmosféricas.
Posted inNews

Una explosión de radiocarbono del pasado

by Caroline Hasler 31 October 202231 October 2022

El fechamiento por radiocarbono es un pilar de la climatología y la arqueología. Sin embargo, esta metodología se encuentra amenazada por las emisiones de combustibles fósiles, que invalidan una señal útil proveniente de pruebas nucleares.

A distinctive mushroom cloud blossoms over the cloud line during detonation of the Ivy Mike hydrogen bomb in 1952.
Posted inNews

Radiocarbon’s Blast from the Past

by Caroline Hasler 15 September 202231 October 2022

Radiocarbon dating is a cornerstone of climate and archaeological sciences. But the method is under threat as fossil fuel emissions negate a useful signal from atomic tests.

The Colorado River with canyons in the background
Posted inResearch Spotlights

Impact of Climate on River Chemistry Across the United States

by Sarah Derouin 26 July 202227 July 2022

Findings of a new study have implications for water quality, aquatic ecosystem health, and water treatment and management as the world warms.

Simulation of ions escaping the Martian atmosphere
Posted inResearch Spotlights

测量火星大气中的碳离子损失

by Morgan Rehnberg 10 March 202210 March 2022

NASA的MAVEN探测器观测到的碳通量与模型相符,比氧离子低1到2个数量级。

Simulation of ions escaping the Martian atmosphere
Posted inResearch Spotlights

Measuring Carbon Ion Loss from the Martian Atmosphere

by Morgan Rehnberg 8 February 202210 March 2022

The flux, observed with NASA’s MAVEN spacecraft, is in line with models and 1–2 orders of magnitude lower than that of oxygen ions.

Sediment cores retrieved from the Atacama Trench (top left) and sliced on board (top right)
Posted inResearch Spotlights

A Deep Dive into Organic Carbon Distribution in Hadal Trenches

by Kate Wheeling 28 May 20219 November 2022

Researchers use sediment cores to study the amount and origin of sediment organic carbon in one of the least studied regions of the planet: hadal trenches.

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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