Thu, 21 Aug 2008 10:30:25 BST CiteULike: Katje Jickells http://www.citeulike.org/user/Katje/author/Jickells CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/Katje/article/2804729 <i>Science, Vol. 320, No. 5878. (16 May 2008), pp. 893-897.</i><br /><br />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 [~]3% of the annual new marine biological production, [~]0.3 petagram of carbon per year. This input could account for the production of up to [~]1.6 teragrams of nitrous oxide (N2O) per year. Although [~]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 increasing atmospheric nitrogen deposition are expected to continue to grow in the future. 10.1126/science.1150369 Impacts of Atmospheric Anthropogenic Nitrogen on the Open Ocean RA Duce J Laroche K Altieri KR Arrigo AR Baker DG Capone S Cornell F Dentener J Galloway RS Ganeshram RJ Geider T Jickells MM Kuypers R Langlois PS Liss SM Liu JJ Middelburg CM Moore S Nickovic A Oschlies T Pedersen J Prospero R Schlitzer S Seitzinger LL Sorensen M Uematsu O Ulloa M Voss B Ward L Zamora doi:10.1126/science.1150369 Science, Vol. 320, No. 5878. (16 May 2008), pp. 893-897. 2008-05-16T09:07:28-00:00 2008 Science 320 5878 893 897 marine n-cycle review