{"id":119534,"date":"2026-09-11T21:50:48","date_gmt":"2026-09-11T19:50:48","guid":{"rendered":"https:\/\/nilu.gnist.dev\/publikasjoner\/magnitude-and-uncertainty-of-nitrous-oxide-emissions-from-north-america-based-on-bottom-up-and-top-down-approaches-informing-future-research-and-national-inventories\/"},"modified":"2026-09-11T21:50:48","modified_gmt":"2026-09-11T19:50:48","slug":"magnitude-and-uncertainty-of-nitrous-oxide-emissions-from-north-america-based-on-bottom-up-and-top-down-approaches-informing-future-research-and-national-inventories","status":"publish","type":"nva_publication","link":"https:\/\/nilu.gnist.dev\/en\/publications\/magnitude-and-uncertainty-of-nitrous-oxide-emissions-from-north-america-based-on-bottom-up-and-top-down-approaches-informing-future-research-and-national-inventories\/","title":{"rendered":"Magnitude and Uncertainty of Nitrous Oxide Emissions From North America Based on Bottom-Up and Top-Down Approaches: Informing Future Research and National Inventories"},"content":{"rendered":"<p class=\"wp-block-paragraph\">We synthesized N2O emissions over North America using 17 bottom-up (BU) estimates from 1980\u20132016 and five top-down (TD) estimates from 1998 to 2016. The BU-based total emission shows a slight increase owing to U.S. agriculture, while no consistent trend is shown in TD estimates. During 2007\u20132016, North American N2O emissions are estimated at 1.7 (1.0\u20133.0) Tg N yr\u22121 (BU) and 1.3 (0.9\u20131.5) Tg N yr\u22121 (TD). Anthropogenic emissions were twice as large as natural fluxes from soil and water. Direct agricultural and industrial activities accounted for 68% of total anthropogenic emissions, 71% of which was contributed by the U.S. Our estimates of U.S. agricultural emissions are comparable to the EPA greenhouse gas (GHG) inventory, which includes estimates from IPCC tier 1 (emission factor) and tier 3 (process-based modeling) approaches. Conversely, our estimated agricultural emissions for Canada and Mexico are twice as large as the respective national GHG inventories.<\/p>\n","protected":false},"template":"","meta":{"_acf_changed":false,"_searchwp_excluded":"","_id":"","_status":"PUBLISHED","_sync_date":"2026-09-11 15:00:43","footnotes":""},"nva_tax_category":[1099],"class_list":["post-119534","nva_publication","type-nva_publication","status-publish","hentry","nva_tax_category-scientific-journal-publication"],"acf":[],"_links":{"self":[{"href":"https:\/\/nilu.gnist.dev\/en\/wp-json\/wp\/v2\/nva_publication\/119534","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nilu.gnist.dev\/en\/wp-json\/wp\/v2\/nva_publication"}],"about":[{"href":"https:\/\/nilu.gnist.dev\/en\/wp-json\/wp\/v2\/types\/nva_publication"}],"version-history":[{"count":0,"href":"https:\/\/nilu.gnist.dev\/en\/wp-json\/wp\/v2\/nva_publication\/119534\/revisions"}],"wp:attachment":[{"href":"https:\/\/nilu.gnist.dev\/en\/wp-json\/wp\/v2\/media?parent=119534"}],"wp:term":[{"taxonomy":"nva_tax_category","embeddable":true,"href":"https:\/\/nilu.gnist.dev\/en\/wp-json\/wp\/v2\/nva_tax_category?post=119534"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}