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Global Biogeochemical Cycles

Visit the journal.

A satellite view of Saharan dust plumes over the Atlantic Ocean
Posted inResearch Spotlights

A Novel Approach Reveals Element Cycles in the Ocean

Aaron Sidder, freelance science writer by Aaron Sidder 16 January 201928 January 2022

Dissolved thorium isotopes light the way to a more thorough understanding of how different elements enter marine environments—and how long they stay there.

Posted inEditors' Highlights

Radionuclide Data from GEOTRACES Improve Particle Flux Estimates

by K. Matsumoto 7 January 201927 September 2022

New measurements of multiple radionuclides in the Atlantic Ocean offer a robust constraint on the sinking flux of particles and associated vertical fluxes of biogeochemically important elements.

A view of Dixon Entrance off the west coast of British Columbia, Canada
Posted inResearch Spotlights

Tool to Capture Marine Biological Activity Gets Coastal Upgrade

Sarah Stanley, Science Writer by Sarah Stanley 27 November 201814 April 2022

Upwelling hinders an efficient method to estimate a key measure of biological productivity in coastal waters, but accounting for surface temperatures could boost accuracy.

Researchers analyze just how much silica is being transported across Earth’s oceans by phytoplankton
Posted inResearch Spotlights

The Tiny Organisms That Transport Silica Across Earth’s Oceans

by E. Underwood 29 June 201828 January 2022

Phaeodarians play a major role in marine nutrient cycle.

Researchers examine the role of upper estuaries as blue carbon sinks
Posted inResearch Spotlights

Upper Estuaries Found to Be Significant Blue Carbon Sink

Aaron Sidder, freelance science writer by Aaron Sidder 29 June 201826 March 2024

Inland from the seagrass and salt marsh ecosystems that border the ocean, upper estuaries store more carbon than previously realized and could play an important role in mitigating climate change.

Researchers uncover uncertainty in soil carbon estimates
Posted inResearch Spotlights

Major Uncertainty in Estimates of Carbon Trapped in Soil

by E. Underwood 22 March 201812 January 2023

A new study reveals discrepancies between global databases and field measurements.

The physical properties of peatland burn sites affect the amount of greenhouse gases that end up in the atmosphere
Posted inResearch Spotlights

Measuring Emissions from Smoldering Peat Fires

Alexandra Branscombe by A. Branscombe 1 February 20182 November 2021

A new study measures emission factors for tropical peatland fires in Malaysia.

Posted inResearch Spotlights

Accounting for the Missing Silica in the Marine Sediment Cycle

by Terri Cook 16 January 201828 January 2022

Cosmogenic silicon-based estimates of the amount of biogenic silica stored in clays along continental margins could explain the large discrepancy in the nutrient’s global marine budget.

Posted inEditors' Vox

Thirty Years of GBC in a Changing World

by Susan Trumbore 6 December 20171 November 2021

The outgoing Editor in Chief of Global Biogeochemical Cycles reflects on how research topics published in the journal have adapted and developed since its launch three decades ago.

Researchers put an old model to the test with new data to examine methane dynamics in wetland
Posted inResearch Spotlights

A New Model Yields a Better Picture of Methane Fluxes

Elizabeth Thompson by Elizabeth Thompson 27 November 20172 November 2021

Scientists update an old model with recent findings, allowing for a more accurate understanding of methane dynamics in wetlands.

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