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carbon

Diagram from the paper.
Posted inEditors' Highlights

Inductive Approach Reveals Controls on Dissolved Organic Carbon

by Adam S. Ward 5 May 20235 May 2023

Machine learning leverages large data sets to reveal hidden patterns explaining when, where, and why dissolved organic carbon moves from hillslopes to streams.

Diagram of the carbon cycling in Subglacial Lake Mercer.
Posted inEditors' Highlights

Clues from a Subglacial Lake for Holocene Grounding Line Change

by Susan Trumbore 2 May 20231 May 2023

Organic carbon sampled in the lake contained radiocarbon, indicating connection to the ocean in the mid-Holocene, when the grounding line was up to 260 kilometers inland of its current position.

Researchers deploying an ARGO float.
Posted inEditors' Highlights

Bio-Argo Floats Reveal Phytoplankton Increase at Ocean Fronts

by Takeyoshi Nagai 20 March 202320 March 2023

Bio-Argo floats and satellite altimeter data reveal that upwelling caused by confluent flow on the warm side of ocean fronts increases phytoplankton carbon and chlorophyll.

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 202222 March 2023

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

Sarah Derouin, Science Writer 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

Kate Wheeling, freelance science writer 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.

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