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News & Views |
Ocean dissolved organics matter
Large quantities of organic carbon are stored in the ocean, but its biogeochemical behaviour is elusive. Size–age–composition relations now quantify the production of tiny organic molecules as a major pathway for carbon sequestration.
- Rainer M. W. Amon
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News & Views |
Carbon losses in the Alps
Soil carbon stocks depend on inputs from decomposing vegetation and return to the atmosphere as CO2. Monitoring of carbon stocks in German alpine soils has shown large losses linked to climate change and a possible positive feedback loop.
- Guy Kirk
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Letter |
Sedimentary membrane lipids recycled by deep-sea benthic archaea
Archaea are prevalent in the deep sea, and comprise a major fraction of the biomass in marine sediments. 13C-labelling experiments on the sea floor suggest that benthic archaea use sedimentary organic compounds to construct their membranes.
- Yoshinori Takano
- , Yoshito Chikaraishi
- & Naohiko Ohkouchi
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