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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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Journal ArticleDOI

Environmental effects of ozone depletion and its interactions with climate change: progress report, 2011

TL;DR: The parties to the Montreal Protocol are informed by three panels of experts, one of which is the Environmental Effects Assessment Panel (EEAP), which deals with two focal issues, the effects of increased UV radiation on human health, animals, plants, biogeochemistry, air quality, and materials and interactions between UV radiation and global climate change.
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Ecosystem services altered by human changes in the nitrogen cycle: a new perspective for US decision making.

TL;DR: In this article, the authors review the science quantifying effects of N on key ecosystem services, and compare the costs of N-related impacts or mitigation using the metric of cost per unit of N.
Journal ArticleDOI

Reactive nitrogen in the environment and its effect on climate change

TL;DR: In this article, it was shown that nitrogen leads to a net cooling effect on climate with very high uncertainty, taking also into account the other effects of nitrogen on human health, environment and ecosystem services.
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The consequences of niche and physiological differentiation of archaeal and bacterial ammonia oxidisers for nitrous oxide emissions

TL;DR: Growth of both AOA and AOB at high ammonium concentration is demonstrated, a hypothesis that ammonium supplied continuously at low rates is preferentially oxidised by AOA is tested, with lower N2O yield than expected for AOB-dominated processes, suggesting lower emissions when AOA dominate ammonia oxidation.
Journal ArticleDOI

Nitrous Oxide: No Laughing Matter

TL;DR: The report by Ravishankara et al. on page 123 of this issue (1) not only adds to the scientific understanding of this important gas, but is a strong reminder that nitrous oxide deserves much more attention and consideration for policy action to control future human-related emissions.
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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