Country nitrogen footprints: Comparisons, drivers, and opportunities for reduction
Allison M. Leach, University of New Hampshire Main Campus, Durham, NH, United States, James N Galloway, University of Virginia, Environmental Sciences, Charlottesville, VA, United States, Xia Liang, University of Melbourne, Parkville, VIC, Australia, Jan Willem Erisman, Professor, Earth and Life Sciences, Amsterdam, Netherlands and Albert Bleeker, PBL Netherlands Environmental Assessment Agency, The Hague, Netherlands
