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.
The resuspension of seafloor sediments—triggered by human activities such as bottom trawling as well as natural processes like storms and tides—can significantly increase the release of carbon dioxide (CO2) into the atmosphere. ...
Earth Sciences
Apr 24, 2025
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As climate change increases, so does the pressure on humanity to remove carbon dioxide (CO2) from the atmosphere—possibly with the help of the oceans. But which of the proposed marine CO2 removal and storage options should ...
Earth Sciences
Apr 11, 2025
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According to a predictive model developed by a CNRS researcher and his European colleagues, the microalgae present in peat bogs could offset up to 14% of future CO2 emissions, thanks to their photosynthetic activity. This ...
Earth Sciences
Mar 20, 2025
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The Regional Carbon Cycle Assessment and Processes (RECCAP) project launched in 2011 to provide regional carbon budgets at continental and oceanic scales. However, its first phase did not examine the 24 countries in the Central ...
Environment
Mar 13, 2025
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A group of construction managers and real estate specialists at Tsinghua University, in China, has found that the unusually high number of unoccupied residential units in China's cities is responsible for releasing massive ...
