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carbon cycle

New measurements help researchers assess methane emitted by wetlands
Posted inResearch Spotlights

What’s the Average Methane Isotope Signature in Arctic Wetlands?

by Terri Cook 4 May 20173 March 2023

Aircraft measurements confirm that methane emissions from northern European wetlands exhibit a uniform regional carbon isotopic signature, despite considerable ground-level heterogeneity.

A new study uncovers how planting trees might impact climate.
Posted inResearch Spotlights

Can Tree Planting Really Help Mitigate Climate Change?

by S. Witman 2 May 20178 November 2022

It depends on where, when, and how.

Marine scientists deploy a video plankton recorder in the high-latitude North Atlantic in April 2012.
Posted inScience Updates

Optical Sensors Can Shed Light on Particle Dynamics in the Ocean

by S. L. C. Giering 2 May 201727 September 2022

First TOMCAT Workshop; Southampton, UK, 12–14 September 2016

Twitchell Island, in Sacramento County, Calif., is a wetland flux site in the FLUXNET network.
Posted inScience Updates

A New Data Set to Keep a Sharper Eye on Land-Air Exchanges

by G. Z. Pastorello, D. Papale, H. Chu, C. Trotta, D. A. Agarwal, E. Canfora, Dennis Baldocchi and M. S. Torn 17 April 201710 March 2023

FLUXNET2015, the latest update of the longest global record of ecosystem carbon, water, and energy fluxes, features improved data quality, new data products, and more open data sharing policies.

Researchers examine the exchange of carbon dioxide between the air and water in an Arctic region where thick ice has prevented ship passage.
Posted inResearch Spotlights

How Arctic Ice Affects Gas Exchange Between Air and Sea

Sarah Stanley, Science Writer by Sarah Stanley 14 April 20179 August 2022

Scientists begin to fill a major data gap by investigating carbon dioxide dynamics in a remote region of the Arctic Ocean.

Amanita thiersii mushrooms
Posted inResearch Spotlights

Mushrooms Could Provide a Record of Grassland History

Alexandra Branscombe by A. Branscombe 11 April 20174 October 2021

Scientists measured carbon isotopes in certain types of fungi to assess whether the organisms can track how climate change is affecting grasses.

Ruddiman Lagoon, a small freshwater lake, joins Muskegon Lake, a freshwater estuary in Michigan.
Posted inOpinions

Global Significance of the Changing Freshwater Carbon Cycle

by Bopaiah A. Biddanda 21 March 20174 February 2022

Freshwater ecosystems constitute a small fraction of our planet but play a disproportionately large and critical role in the global carbon cycle.

Researchers work to improve modeling of how thawing permafrost may impact Earth’s ecosystems
Posted inResearch Spotlights

Modeling Permafrost's Role in the Global Carbon Cycle

by S. Witman 15 March 20179 December 2021

A team of international scientists surveyed an array of Earth ecosystem models, recommending several ways to reduce uncertainties.

Samples of Arctic permafrost hold clues to the carbon feedback loop that may be sparked as the permafrost thaws.
Posted inResearch Spotlights

Arctic Permafrost Thaw Would Amplify Climate Change

by S. Witman 3 March 201715 November 2021

An international team probed Arctic permafrost samples to better understand the carbon feedback loop that could be set off by future thawing.

Researchers have developed a new tool to assess short-term changes in threatened coral reefs.
Posted inResearch Spotlights

Scientists Develop New Tool to Monitor Reef Health

Sarah Stanley, Science Writer by Sarah Stanley 2 March 201711 August 2022

A first-of-its-kind system could reveal short-term changes in threatened reefs worldwide.

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