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Nature 456, 888-889 (18 December 2008) | doi:10.1038/456888a; Published online 17 December 2008

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Biogeochemistry: Nitrous oxide in flux

Sharon A. Billings1

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In drought conditions, forest soils can serve as a small but surprisingly persistent sink for the greenhouse gas nitrous oxide. The effect highlights a research avenue necessary for predicting Earth's climate.

Increasing amounts of reactive nitrogen1 are entering the environment through human agency. One consequence is increased production of the powerful greenhouse gas nitrous oxide — N2O — by microorganisms in soils.

  1. Sharon A. Billings is in the Department of Ecology and Evolutionary Biology, and the Kansas Biological Survey, University of Kansas, 2101 Constant Avenue, Lawrence, Kansas 66047, USA.
    Email: sharonb@ku.edu

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