Carbon flux, in the context of biogeochemical topics, denotes the rate at which carbon in its various chemical forms (e.g., CO₂, CH₄, dissolved inorganic and organic carbon, particulate organic carbon) is transferred per unit area and time between reservoirs such as the atmosphere, terrestrial biosphere, oceans, and lithosphere. It encompasses processes including photosynthetic uptake, respiration, decomposition, combustion, weathering, ocean–atmosphere gas exchange, and sedimentation. Quantification of carbon fluxes, typically in units like g C m⁻² yr⁻¹, is central to constraining carbon budgets, modeling the global carbon cycle, and assessing feedbacks in climate system research.
Forest fires are a fundamental force in Earth's dynamics with a direct impact on human health, food security, and biodiversity. From air quality to landscape configuration and resource availability, the consequences of fire ...
Earth Sciences
Jun 13, 2025
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Approximately 30% of global carbon dioxide (CO2) emissions are removed by terrestrial vegetation through photosynthesis. Researchers affiliated with UNIST have unveiled an innovative artificial intelligence (AI) analysis ...
Environment
Jun 4, 2025
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A new study has revealed for the first time that ancient carbon, stored in landscapes for thousands of years or more, can find its way back to the atmosphere as CO₂ is released from the surfaces of rivers.
Earth Sciences
Jun 4, 2025
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A team of meteorologists, Earth scientists and oceanographers at Sorbonne Université, working with one colleague from Université Paris-Saclay and another from Université Brest, all in France, has developed a simulation that ...
New research reveals the amount of carbon dioxide released by trees into the atmosphere under a warming climate could be considerably less than currently predicted.
Earth Sciences
May 30, 2025
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Organic particles that settle on the seabed ensure CO2 stays locked. However, natural gel-like substances slow down this process. Such microscale mechanisms play a crucial role in enhancing climate predictions.
Earth Sciences
May 28, 2025
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Marine life plays a pivotal role in Earth's carbon cycle. Phytoplankton at the base of the aquatic food web take up carbon dioxide from the atmosphere, convert it to organic carbon, and move it around as they become food ...
Earth Sciences
May 27, 2025
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Forests once hailed as reliable carbon sinks are rapidly becoming "super‑emitters" as record‑breaking wildfires sweep boreal, Amazonian, and Australian landscapes. Today's climate policies and voluntary carbon markets seldom ...
Earth Sciences
May 22, 2025
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A new study published in Science Advances by researchers from the Guangzhou Institute of Geochemistry of the Chinese Academy of Sciences (GIG-CAS), along with international collaborators, reveals that deeply subducted carbonates ...
Earth Sciences
May 21, 2025
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In high-latitude Arctic fjords, warming seas and reduced sea ice are boosting seaweed growth. This expansion of seaweed "forests" could alter the storage and cycling of carbon in coastal Arctic ecosystems, but few studies ...
Earth Sciences
May 19, 2025
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