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Global Biogeochemical Cycles

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Understanding how the ocean absorbs carbon dioxide will help scientists to improve climate change modeling.
Posted inResearch Spotlights

Can We Predict the Future of Ocean Carbon Dioxide Uptake?

Shannon Hall by S. Hall 18 October 201615 November 2021

A new understanding of uncertainties in climate change models allows scientists to decide which source to tackle first in order to better forecast our planet's changing climate.

Phytoplankton blooms help to cycle nitrate in the Southern Ocean.
Posted inResearch Spotlights

A New Mechanism for Nitrogen Cycling in the Southern Ocean

Sarah Stanley, Science Writer by Sarah Stanley 29 July 201617 August 2022

A nitrite-oxidizing enzyme may work in reverse for some microbes in the Antarctic autumn.

Mangroves at Coral Creek, Hinchinbrook Island. Australia.
Posted inResearch Spotlights

Can Mangroves Buffer Ocean Acidification?

by W. Yan 9 June 201620 April 2022

New research evaluates the ability of coastal foliage to influence the ocean's pH.

Posted inResearch Spotlights

Moored Ocean Buoy Tracks Marine Carbon Cycle Variations

by Mark Zastrow 14 March 201617 March 2023

Years of data from a North Pacific ocean station show that the ocean's ability to pull carbon out of the atmosphere is controlled by biological and physical processes that change between seasons.

Posted inResearch Spotlights

Soil Loses Pyrogenic Carbon by an Unexpected Pathway

by S. Kelleher 1 March 20168 March 2023

Fresh insight into pyrogenic carbon disappearance suggests that erosion is not responsible.

Posted inResearch Spotlights

Tracking Carbon in the Alaskan Arctic

Kate Wheeling, freelance science writer by Kate Wheeling 8 February 20169 December 2021

Researchers trace carbon through Arctic soils and find an unlikely source of methane and surprisingly low methane oxidation in watersheds throughout northern Alaska.

Posted inResearch Spotlights

Past Phosphorus Runoff Causes Present Oxygen Depletion in Lakes

by David Shultz 24 July 201520 April 2022

Sediment cores show how phosphorus pollution in the 1950s led to current, inherited hypoxia in lakes in the Alps.

Posted inResearch Spotlights

Humans Greatly Increase Mercury Levels in the Ocean

by S. Palus 22 April 201525 August 2022

A study of the natural cycle of mercury reveals that humans are to blame for a five- to sixfold increase in the oceanic concentrations of the potentially toxic element.

Posted inResearch Spotlights

How Much Carbon Dioxide Does Sunlight Release from Lakes?

by S. Palus 8 April 201517 March 2023

A study of more than 1000 lakes in Sweden helps model sunlight's ability to drive greenhouse gas emissions.

Posted inResearch Spotlights

Ocean Carbon Uptake More Variable Than Previously Thought

by E. Betz 9 December 201427 September 2022

Researchers create a global model of carbon dioxide absorbed by the ocean to get a better idea of how the greenhouse gas influences climate.

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