title: An Earth-system perspective of the global nitrogen cycle.
authors.affiliation: Environmental Physics group, Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Universitätstrasse 16, 8092 Zurich, Switzerland. nicolas.gruber@env.ethz.ch
authors.forename: Nicolas
authors.initials: N
authors.lastname: Gruber
authors.forename: James N
authors.initials: JN
authors.lastname: Galloway
mesh_terms: D002244:Carbon / Q000378:metabolism; D002980:Climate; D018534:Earth, Planet; D017753:Ecosystem; D006802:Human Activities; D009584:Nitrogen / Q000378:metabolism*; D009586:Nitrogen Fixation; D009792:Oceans and Seas; D012623:Seawater / Q000737:chemistry
chemical_list: D002244:Carbon; D009584:Nitrogen