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carbon cycle

A scuba diver swims and shines a flashlight through brownish river water in a cave.
Posted inScience Updates

A New Focus on the Neglected Carbonate Critical Zone

by J. B. Martin, P. C. De Grammont, M. D. Covington and L. Toran 20 September 202128 January 2022

Studies of Earth’s critical zone have largely focused on areas underlain by silicate bedrock, leaving gaps in our understanding of widespread and vital carbonate-dominated landscapes.

The Duvannyi Yar thaw site on the Kolyma River in Siberia
Posted inResearch Spotlights

Minimal Evidence of Permafrost Carbon in Siberia’s Kolyma River

by Terri Cook 20 September 202128 February 2022

New research finds that Arctic rivers currently transport limited permafrost-derived dissolved organic carbon, which has implications for understanding the region’s changing carbon cycle—and its potential to accelerate climate change.

A burst of sunlight above a cloudy Earth.
Posted inNews

Small Climate Changes Could Be Magnified by Natural Processes

by Damond Benningfield 16 September 202121 March 2022

A new study uses modeling techniques to uncover how small incidents of warming may be turned into hyperthermal events lasting thousands of years.

Patch of forest close to the Tambopata River, Peru
Posted inNews

Forest Recovery in the Amazon Is a Slow Process

by Meghie Rodrigues 14 September 202129 April 2022

For the first time, a study analyzes Amazon forest loss and recovery at national and subnational levels. One finding shows that new plantings offset less than 10% of emissions associated with deforestation.

Black carbon particles are spread throughout our atmosphere, produced by the burning of fuels or industrial processes.
Posted inResearch Spotlights

How Long Do Black Carbon Particles Linger in the Atmosphere?

by Sarah Derouin 10 September 20218 March 2022

Researchers uncover how black carbon evolves from hydrophobic particles to cloud nucleation sites, eventually removing the heat-absorbing particles from the sky.

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.

Trowel and collection tools sit in a dry desert.
Posted inNews

Desert Life Conjures Organic Carbon from Thin Air

by Elise Cutts 10 August 202122 December 2021

Without water, photosynthesis shuts down. To survive dry spells, desert microbes scavenge traces of hydrogen from the air and burn it for energy. Some even use hydrogen to fuel carbon fixation.

Figure showing key requirements for making forest-based natural climate solutions successful for climate mitigation, with examples of potential pitfalls are shown for each category.
Posted inEditors' Highlights

Permanence of Nature-Based Climate Solutions at Risk

by E. Davidson 22 July 20213 May 2022

Conserving native ecosystems helps sequester carbon and mitigate climate change, but new statistical modeling questions the permanence of California’s carbon-rich forests with climate change.

Imagen de microscopio de varios tipos de dinoflagelados
Posted inResearch Spotlights

El papel del fitoplancton de tamaño medio en la bomba biológica de la Tierra

by Kate Wheeling 21 July 202128 September 2021

Una nueva investigación revela que el nanoplancton podría tener una mayor influencia en el ciclo del carbono de lo que se pensaba.

Vista desde el suelo de una marca de tractor en un suelo de un campo de cultivos
Posted inResearch Spotlights

Una mirada global al carbono orgánico superficial del suelo

by David Shultz 14 July 202128 September 2021

El carbono orgánico del suelo es un elemento importante para la salud de los ecosistemas y del clima. En la actualidad la teledetección permite a los científicos observar globalmente esta importante pieza del rompecabezas del carbono.

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From AGU Journals

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Reviews of Geophysics
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By M. O. Andreae, P. Merlet

HOT ARTICLE
Geophysical Research Letters
“Relating Slip Behavior to Off-Fault Deformation Using Physical Models”
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