These data were prepared for the global 2016 assessment.
The status of nutrient pollution is based on FAO agricultural fertilizer use. These data are updated yearly, with the most recent data.
The most recent land-based organic data is on a NCEAS server: /var/cache/halpern-et-al/mnt/storage/marine_threats/impact_layers_2013_redo/impact_layers/work/land_based/before_2007/step7/output/2013/global_plumes_fert_2013_raw.tif