Carbon cycling refers to the set of biogeochemical processes that regulate the transformation, transport, and storage of carbon among major Earth system reservoirs, including the atmosphere, terrestrial biosphere, oceans, and lithosphere. It encompasses autotrophic carbon fixation, heterotrophic respiration, decomposition, sedimentation, weathering, and anthropogenic fluxes such as fossil fuel combustion and land-use change. Research on carbon cycling quantifies fluxes and pool sizes, characterizes feedbacks between carbon reservoirs and climate, and employs observational networks, isotopic tracers, and Earth system models to constrain budgets, residence times, and perturbation responses across temporal scales from diurnal to geologic.
Ash dieback and other tree diseases are resulting in significantly more greenhouse gas emissions than previously thought because a large amount of carbon is escaping from woodland soils, a study has found. This is in addition ...
Earth Sciences
Aug 20, 2025
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The Amazon is the world's largest rainforest. It harbors immense biodiversity and plays a crucial role in the global climate system by storing vast amounts of carbon in its vegetation.
Earth Sciences
Aug 20, 2025
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Carbon dioxide in the atmosphere enters the ocean at the surface and has been increasing the acidity of Pacific waters since the beginning of the industrial revolution over 200 years ago. A new study, led by University of ...
Earth Sciences
Aug 19, 2025
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Teasing apart the sources of organic carbon stored in coastal wetland soils around the world was the "grand challenge" Australian Institute of Marine Science (AIMS) scientists successfully tackled in a seminal blue carbon ...
Environment
Aug 19, 2025
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Lakes have long been viewed as sources of carbon dioxide emissions, but new research suggests they may actually act as carbon sinks. A study led by Uppsala University reveals that lake shorelines store more carbon than previously ...
Earth Sciences
Aug 11, 2025
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Adding crushed calcium carbonate—limestone—to agricultural fields can remove tons of carbon dioxide from the atmosphere each year while improving crop yields, a Yale-led study published in Nature Water found.
Ecology
Aug 7, 2025
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292
USC scientists are exploring how the sandy seafloor off the Southern California coast takes up CO2 and helps protect the long-term health of our oceans.
Environment
Aug 7, 2025
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The population of one species of coral in the main island of the Alcatrazes Archipelago Wildlife Refuge (REVIS), located off the southern coast of the state of São Paulo, Brazil, retains about 20 tons of carbon per year. ...
Environment
Aug 5, 2025
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Forests play a central role in the global carbon cycle as trees store carbon in their trunks, branches, roots and leaves. However, climate change and human activities can change the ability of forests to absorb carbon and ...
Earth Sciences
Aug 1, 2025
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How much carbon can the ocean absorb, and what happens to it as the planet warms? Sonya Dyhrman, a microbial oceanographer and professor at Lamont-Doherty Earth Observatory, is trying to answer these questions. (Lamont is ...
Ecology
Jul 31, 2025
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