The amount of CO2 segregated from the mantle by carbonate melting beneath old oceanic crust may equal that emitted along the mid-ocean ridge system, thereby contributing to the global carbon cycle.
carbon cycle
Posted inResearch Spotlights
Insect Infestations Alter Forest Carbon Cycle
A hemlock woolly adelgid outbreak in southern Appalachia prompted a transformation in where the forest stores carbon.
Posted inEditors' Highlights
Seasonal Leaf Production Is Key Control on Amazon Carbon Balance
Characterizing leaf phenology in process-based models reconciles both “dry season green-up” and drought controls on Amazonian carbon balance.
Posted inResearch Spotlights
Effects of Acid Rain, Climate Change on Freshwater Lakes
New England lakes weathered years of acid rain. A new study tracks how they are faring after 30 years of regulation and how climate change factors into the equation.
Posted inResearch Spotlights
Upper Estuaries Found to Be Significant Blue Carbon Sink
Inland from the seagrass and salt marsh ecosystems that border the ocean, upper estuaries store more carbon than previously realized and could play an important role in mitigating climate change.
Posted inResearch Spotlights
Refining Remote Sensing of Dissolved Organic Carbon in Waterways
Nearby vegetation affects the color of organic matter, a new study finds.
Posted inEditors' Highlights
Getting Littoral with Lake Carbon Efflux
Next generation forced diffusion chambers reveal dynamic environment for lake carbon exchange with distance from shoreline.
Posted inEditors' Vox
Radiocarbon in the Oceans
Offsets in radiocarbon concentration within the ocean or between the ocean and the atmosphere are particularly useful proxies for a variety of studies.
Posted inResearch Spotlights
Major Uncertainty in Estimates of Carbon Trapped in Soil
A new study reveals discrepancies between global databases and field measurements.
Posted inResearch Spotlights
A Deeper Understanding of Carbon Decomposition in Arctic Soils
Physical parameters may help scientists extrapolate Arctic carbon soil losses from the local to the regional scale, according to the results of a yearlong incubation experiment.