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Nitrous Oxide (N2O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century

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TLDR
In this paper, the ozone depletion potential-weighted anthropogenic emissions of N2O with those of other ozone-depleting substances were compared, and it was shown that N 2O emission currently is the single most important ozone-destroying emission and is expected to remain the largest throughout the 21st century.
Abstract
By comparing the ozone depletion potential-weighted anthropogenic emissions of N2O with those of other ozone-depleting substances, we show that N2O emission currently is the single most important ozone-depleting emission and is expected to remain the largest throughout the 21st century. N2O is unregulated by the Montreal Protocol. Limiting future N2O emissions would enhance the recovery of the ozone layer from its depleted state and would also reduce the anthropogenic forcing of the climate system, representing a win-win for both ozone and climate.

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Citations
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Journal ArticleDOI

Site-specific 15N isotopic signatures of abiotically produced N2O

TL;DR: In this paper, the authors investigated the site preference (SP) of N2O produced by different abiotic reactions in a laboratory study and presented the first continuous analysis of δ18O in n2O.
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Spatially explicit estimates of N2O emissions from croplands suggest climate mitigation opportunities from improved fertilizer management

TL;DR: This work applies a super-linear emissions response model to crop-specific, spatially explicit synthetic N fertilizer and manure N inputs to provide subnational accounting of global N2 O emissions from croplands, and estimates high-resolution N application data are critical to support accurate N 2 O emissions estimates.
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Enhancing waste management strategies in Latin America under a holistic environmental assessment perspective: A review for policy support.

TL;DR: The adoption of more sophisticated technologies in landfill sites (e.g. landfill gas flaring), waste-to-energy, as well as higher recycling rates, would enhance waste management in the region and mitigate environmental impacts.
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Biochar increases nitrogen retention and lowers greenhouse gas emissions when added to composting poultry litter

TL;DR: The results support the co-composting of biochar to lower net emissions of GHGs while increasing N retention (and fertiliser N value) in the mature compost.
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Seasonal and diurnal variability of N2O emissions from a full-scale municipal wastewater treatment plant.

TL;DR: The diurnal Trend of the emission coincided with the diurnal trend of the nitrite and nitrate concentrations in the tank, suggesting that suboptimal oxygen concentrations may induce the production of nitrous oxide during both nitrification and denitrification.
References
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Climate change 2007: the physical science basis

TL;DR: The first volume of the IPCC's Fourth Assessment Report as mentioned in this paper was published in 2007 and covers several topics including the extensive range of observations now available for the atmosphere and surface, changes in sea level, assesses the paleoclimatic perspective, climate change causes both natural and anthropogenic, and climate models for projections of global climate.
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The influence of nitrogen oxides on the atmospheric ozone content

TL;DR: In this paper, the probable importance of NO and NO2 in controlling the ozone concentrations and production rates in the stratosphere is pointed out and some processes which may lead to production of nitric acid are discussed.

Climate change 2007: Mitigation. Contribution of Working Group III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Summary for Policymakers.

TL;DR: In this paper, the authors present a collection of essays by Terry Barker, Igor Bashmakov, Lenny Bernstein, Jean Bogner, Peter Bosch, Rutu Dave, Ogunlade Davidson, Brian Fisher, Michael Grubb, Sujata Gupta, Kirsten Halsnaes, BertJan Heij, Boubacarraoui, Shigeki Kobayashi, Mark Levine, Daniel Martino, Omar Masera Cerutti, Bert Metz, Leo Meyer, Gert-Jan Nabuurs, Adil Najam
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