reviewScienceMay 15, 2008GREEN OA

Impacts of Atmospheric Anthropogenic Nitrogen on the Open Ocean

RARobert A. DuceJLJulie LaRocheKEKatye E. AltieriKRKevin R. ArrigoARAlex R. Baker

Rutgers, The State University of New Jersey · University of East Anglia · +9 more institutions

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Abstract

Increasing quantities of atmospheric anthropogenic fixed nitrogen entering the open ocean could account for up to about a third of the ocean's external (nonrecycled) nitrogen supply and up to approximately 3% of the annual new marine biological production, approximately 0.3 petagram of carbon per year. This input could account for the production of up to approximately 1.6 teragrams of nitrous oxide (N2O) per year. Although approximately 10% of the ocean's drawdown of atmospheric anthropogenic carbon dioxide may result from this atmospheric nitrogen fertilization, leading to a decrease in radiative forcing, up to about two-thirds of this amount may be offset by the increase in N2O emissions. The effects of…

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Topics & keywords

Topics
Keywords
  • Environmental science
  • Carbon dioxide in Earth's atmosphere
  • Nitrogen
  • Nitrous oxide
  • Carbon dioxide
  • Oceanography
  • Atmospheric sciences
  • Radiative forcing
UN Sustainable Development Goals
  • Life below water
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