Biogeochemistry

Definition

Biogeochemistry is the study of how chemical elements flow through living systems and their physical environments. It investigates the factors that influence cycles of key elements such as carbon, nitrogen and phosphorous.

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Latest Research and Reviews

News and Comment

  • News and Views |

    Changes in dust flux, export productivity, and bottom-water oxygenation in the equatorial Pacific Ocean have been tightly linked with variations in North Atlantic climate over the past 100,000 years, according to analyses of marine sediments.

    • Andrea Erhardt
  • Comments and Opinion |

    Solar geoengineering is no substitute for cutting emissions, but could nevertheless help reduce the atmospheric carbon burden. In the extreme, if solar geoengineering were used to hold radiative forcing constant under RCP8.5, the carbon burden may be reduced by 100 GTC, equivalent to 12–26% of twenty-first-century emissions at a cost of under US$0.5 per tCO2.

    • David W. Keith
    • , Gernot Wagner
    •  & Claire L. Zabel
  • News and Views |

    A study confirms that volcanism set off one of Earth's fastest global-warming events. But the release of greenhouse gases was slow enough for negative feedbacks to mitigate impacts such as ocean acidification. See Letter p.573

    • Katrin J. Meissner
    •  & Timothy J. Bralower
    Nature 548, 531–533
  • News and Views |

    A revised timeline for when algae became ecologically important among plankton in the ancient oceans reveals a link between chemical changes in those waters and the emergence of animals in marine ecosystems. See Letter p.578

    • Andrew H. Knoll
    Nature 548, 528–530