Global Emissions of NH3, NOx and N2O from Biomass Burning and the Impact of Climate Change.

Emissions of ammonia (NH3), oxides of nitrogen (NOx; NO +NO2) and nitrous oxide (N2O) from biomass burning were quantified on a global scale for 2001 to 2015. On average biomass burning emissions at a global scale over the period were as follows: 4.53 ± 0.51 Tg NH3 year-1, 14.65 ± 1.60 Tg NOx year-1, and 0.97 ± 0.11 Tg N2O year-1. Emissions were comparable to other emissions databases. Statistical regression models were developed to project NH3, NOx and N2O emissions from biomass burning as a function of burn area. Two future climate scenarios (RCP 4.5 and RCP 8.5) were analyzed for 2050-2055 ('mid-century') and 2090-2095 ('end of century'). Under the assumptions made in this study, the results indicate emissions of all species are projected to increase under both the RCP 4.5 and RCP 8.5 climate scenarios.