Acceleration of global N2O emissions seen from two decades of atmospheric inversion

@article{Thompson2019AccelerationOG,
  title={Acceleration of global N2O emissions seen from two decades of atmospheric inversion},
  author={R. L. Thompson and Luis Lassaletta and Prabir K. Patra and C. Wilson and Kelley C Wells and A. Gressent and E. N. Koffi and Martyn P. Chipperfield and Wilfried Winiwarter and Eric A. Davidson and H. Tian and Josep G. Canadell},
  journal={Nature Climate Change},
  year={2019},
  volume={9},
  pages={993-998}
}
Nitrous oxide (N2O) is the third most important long-lived GHG and an important stratospheric ozone depleting substance. Agricultural practices and the use of N-fertilizers have greatly enhanced emissions of N2O. Here, we present estimates of N2O emissions determined from three global atmospheric inversion frameworks during the period 1998–2016. We find that global N2O emissions increased substantially from 2009 and at a faster rate than estimated by the IPCC emission factor approach. The… Expand

Figures from this paper

A comprehensive quantification of global nitrous oxide sources and sinks.
TLDR
A global N2O inventory is presented that incorporates both natural and anthropogenic sources and accounts for the interaction between nitrogen additions and the biochemical processes that control N 2O emissions, using bottom-up, top-down and process-based model approaches. Expand
OECD CRP Fellowship Summary Report: Identifying drivers of N2O emissions in a changing climate
Nitrous oxide (N2O) is a strong greenhouse gas and the most important stratospheric ozone-depleting substance emitted in the 21st century [9, 7, 6]. Anthropogenic emissions of N2O result primarilyExpand
Improving N2O emission estimates with the global N2O database
Climate change will have dire consequences and collaborative efforts are required to quickly develop and assess mitigation solutions. Agriculture is the primary source of the powerful greenhouse gasExpand
Estimating global terrestrial denitrification from measured N2O:(N2O + N2) product ratios
The use of nitrogen (N) fertilizers has grown exponentially over the last century, with severe environmental consequences. Most of the anthropogenic reactive nitrogen will ultimately be returned byExpand
The impact of the rise in atmospheric nitrous oxide on stratospheric ozone
  • R. Müller
  • Medicine, Environmental Science
  • Ambio
  • 2020
TLDR
It is known that atmospheric N2O, which is present in the atmosphere in 2020 at a mixing ratio of 332.8 ppb, is not only important for stratospheric ozone but also constitutes the third most important long-lived greenhouse gas (after CO2 and CH4). Expand
Quantifying Nitrous Oxide Emissions in the U.S. Midwest: A Top‐Down Study Using High Resolution Airborne In‐Situ Observations
The densely farmed U.S. Midwest is a prominent source of nitrous oxide (N2O) but top‐down and bottom‐up N2O emission estimates differ significantly. We quantify Midwest N2O emissions by combiningExpand
Nitrous oxide emissions from permafrost-affected soils
Soils are sources of the potent greenhouse gas nitrous oxide (N2O) globally, but emissions from permafrost-affected soils have been considered negligible owing to nitrogen (N) limitation. RecentExpand
Large and increasing methane emissions from Eastern Amazonia derived from satellite data, 2010–2018
Abstract. We use a global inverse model, satellite data and flask measurements to estimate methane (CH4) emissions from South America, Brazil and the basin of the Amazon River for the periodExpand
Comparing national greenhouse gas budgets reported in UNFCCC inventories against atmospheric inversions
Abstract. In support of the Global Stocktake of the Paris Agreement on Climate change, this study presents a comprehensive framework to process the results of atmospheric inversions in order to makeExpand
N2O dynamics in the western Arctic Ocean during the summer of 2017
TLDR
The western Arctic Ocean (WAO) has experienced increased heat transport into the region, sea-ice reduction, and changes to the WAO nitrous oxide (N2O) cycles from greenhouse gases, and may become a N2O “hot spot”, and therefore, a key region requiring continued observations to both understand N 2O dynamics and possibly predict their future changes. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 62 REFERENCES
The global nitrous oxide budget revisited
We present an update of the global budget of atmospheric nitrous oxide (N2O) that accounts for recent revisions in estimates of global emissions. Most importantly, new estimates of N2O emissions fromExpand
Nitrous oxide emissions 1999 to 2009 from a global atmospheric inversion
Abstract. N2O surface fluxes were estimated for 1999 to 2009 using a time-dependent Bayesian inversion technique. Observations were drawn from 5 different networks, incorporating 59 surface sites andExpand
Global metaanalysis of the nonlinear response of soil nitrous oxide (N2O) emissions to fertilizer nitrogen
TLDR
A first quantitative comparison of N2O emissions for all available studies that have used multiple N rates shows that a nonlinear emission factor better represents global emission patterns with lower uncertainty, offering more power for balancing the global N2 O budget and for designing effective mitigation strategies. Expand
Global and regional emissions estimates for N 2 O
Abstract. We present a comprehensive estimate of nitrous oxide (N2O) emissions using observations and models from 1995 to 2008. High-frequency records of tropospheric N2O are available fromExpand
Estimation of regional emissions of nitrous oxide from 1997 to 2005 using multinetwork measurements, a chemical transport model, and an inverse method
[1] Nitrous oxide (N2O) is an important ozone-depleting gas and greenhouse gas with multiple uncertain emission processes. Global nitrous oxide observations, the Model of Atmospheric Transport andExpand
N 2 O release from agro-biofuel production negates global warming reduction by replacing fossil fuels
The relationship, on a global basis, between the amount of N fixed by chemical, biological or atmospheric processes entering the terrestrial biosphere, and the total emission of nitrous oxide (N2O),Expand
Quantifying the impact of anthropogenic nitrogen deposition on oceanic nitrous oxide
Anthropogenically induced increases in nitrogen deposition to the ocean can stimulate marine productivity and oceanic emission of nitrous oxide. We present the first global ocean model assessment ofExpand
Global soil nitrous oxide emissions since the preindustrial era estimated by an ensemble of terrestrial biosphere models: Magnitude, attribution, and uncertainty
TLDR
This study assessed the effects of multiple anthropogenic and natural factors, including nitrogen fertilizer application, atmospheric N deposition, manure N application, land cover change, climate change, and rising atmospheric CO2 concentration on global soil N2 O emissions for the period 1861-2016 using a standard simulation protocol with seven process-based terrestrial biosphere models. Expand
Interannual and seasonal variability in atmospheric N2O
[1] The increase in atmospheric N2O observed over the last century reflects large-scale human perturbations to the global nitrogen cycle. High-precision measurements of atmospheric N2O over the lastExpand
Quantifying Uncertainties in N2O Emission Due to N Fertilizer Application in Cultivated Areas
TLDR
The uncertainty analysis shows that the uncertainty range currently used by the IPCC-Tier 1 method could be reduced, and ranges of uncertainty on N2O emissions from a subset of these models are calculated. Expand
...
1
2
3
4
5
...