We are pleased to inform you that the Global Carbon Project (GCP) has published a comprehensive Global Nitrous Oxide Budget. The effort was supported by 57 contributors from 48 organisations and 14 countries. You can find relevant papers, highlights, data and additional resources at: https://www.globalcarbonproject.org/nitrousoxidebudget 

The primary reference for Global Nitrous Oxide Budget 2020 is:

Hanqin Tian et al. (2020). A comprehensive quantification of global nitrous oxide sources and sinks. Nature, DOI:10.1038/s41586-020-2780-0

Nitrous oxide (N₂O) is a long lived greenhouse gas and an ozone-depleting substance, with an atmospheric lifetime of 116±9 years. It is the third most important greenhouse gas leading human-driven climate change, after carbon dioxide and methane. The Budget reports that N₂O is accumulating in the atmosphere at an increasing rate, with global emissions of 17 Tg N in 2016, 10% greater than in the 1980s. The dominant cause of the atmospheric N₂O increase is the use of N fertilizers in agriculture, including organic fertilizers from manure produced by livestock. Agricultural production contributed almost 70% to the global anthropogenic N₂O emission in the recent decade of 2007-2016.