Carbon cycle

The carbon cycle is the biogeochemical cycle focused on carbon and how it is sequestered in and moves between different reservoirs in the Earth system.

Latest Research and Reviews

  • Research |

    A large reservoir of organic carbon persists in oxic pelagic sediments for millions of years as demonstrated by samples from the North Atlantic and South Pacific. This predominantly proteinaceous carbon persists due to physical protection and adsorption to mineral surfaces.

    • Emily R. Estes
    • , Robert Pockalny
    • , Steven D’Hondt
    • , Fumio Inagaki
    • , Yuki Morono
    • , Richard W. Murray
    • , Dennis Nordlund
    • , Arthur J. Spivack
    • , Scott D. Wankel
    • , Nan Xiao
    •  & Colleen M. Hansel
  • Research |

    Microbial degradation is a key process for removing aromatic hydrocarbons from the oceans, according to measurements in plankton and seawater with 64 types of polycyclic aromatic hydrocarbons and their microbial degradation genes in four ocean basins.

    • Belén González-Gaya
    • , Alicia Martínez-Varela
    • , Maria Vila-Costa
    • , Paulo Casal
    • , Elena Cerro-Gálvez
    • , Naiara Berrojalbiz
    • , Daniel Lundin
    • , Montserrat Vidal
    • , Carmen Mompeán
    • , Antonio Bode
    • , Begoña Jiménez
    •  & Jordi Dachs
  • Research |

    Subglacially produced methane of microbial origin is flushed to the ice margin of the Greenland ice sheet by meltwater, contributing to a previously unaccounted for methane flux to the atmosphere.

    • Guillaume Lamarche-Gagnon
    • , Jemma L. Wadham
    • , Barbara Sherwood Lollar
    • , Sandra Arndt
    • , Peer Fietzek
    • , Alexander D. Beaton
    • , Andrew J. Tedstone
    • , Jon Telling
    • , Elizabeth A. Bagshaw
    • , Jon R. Hawkings
    • , Tyler J. Kohler
    • , Jakub D. Zarsky
    • , Matthew C. Mowlem
    • , Alexandre M. Anesio
    •  & Marek Stibal
    Nature 565, 73-77
  • Research | | open

    The occurrence and distribution of permafrost region disturbances (PRDs) remain poorly resolved across the Arctic and Subarctic. Here, the authors quantify the abundance and distribution of three primary PRDs using a time-series analysis of 30-m resolution Landsat imagery between 1999 and 2014.

    • I. Nitze
    • , G. Grosse
    • , B. M. Jones
    • , V. E. Romanovsky
    •  & J. Boike
  • Research | | open

    Fires cause large perturbations to terrestrial carbon cycle through direct carbon emissions. Here the authors combine several models and measurement datasets and show that fires can indirectly worsen the carbon loss through the net negative impacts on ecosystem productivity from fire ozone and aerosols.

    • Xu Yue
    •  & Nadine Unger

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