Nitrous Oxide (N 2 O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century
Unwelcome Dominance Stratospheric ozone is depleted by many different chemicals; most prominently, chlorofluorocarbons (CFCs) responsible for causing the Antarctic ozone hole. Nitrous oxide is also an ozone-depleting substance that has natural sources in addition to anthropogenic ones. Moreover, unl...
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craaas:10.1126/science.1176985 2024-09-30T14:26:09+00:00 Nitrous Oxide (N 2 O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century Ravishankara, A. R. Daniel, John S. Portmann, Robert W. 2009 http://dx.doi.org/10.1126/science.1176985 https://www.science.org/doi/pdf/10.1126/science.1176985 en eng American Association for the Advancement of Science (AAAS) Science volume 326, issue 5949, page 123-125 ISSN 0036-8075 1095-9203 journal-article 2009 craaas https://doi.org/10.1126/science.1176985 2024-09-19T04:00:49Z Unwelcome Dominance Stratospheric ozone is depleted by many different chemicals; most prominently, chlorofluorocarbons (CFCs) responsible for causing the Antarctic ozone hole. Nitrous oxide is also an ozone-depleting substance that has natural sources in addition to anthropogenic ones. Moreover, unlike CFCs, its use and emission are not regulated by the Montreal Protocol, which has helped to reverse the rate of growth of the ozone hole. Surprisingly, Ravishankara et al. (p. 123 , published online 27 August; see the Perspective by Wuebbles ) now show that nitrous oxide is the single greatest ozone-depleting substance that, if its emissions are not controlled, is expected to remain the dominant ozone-depleting substance throughout the 21st century. Reducing nitrous oxide emissions would thus enhance the rate of recovery of the ozone hole and reduce the anthropogenic forcing of climate. Article in Journal/Newspaper Antarc* Antarctic AAAS Resource Center (American Association for the Advancement of Science) Antarctic The Antarctic Science 326 5949 123 125 |
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AAAS Resource Center (American Association for the Advancement of Science) |
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language |
English |
description |
Unwelcome Dominance Stratospheric ozone is depleted by many different chemicals; most prominently, chlorofluorocarbons (CFCs) responsible for causing the Antarctic ozone hole. Nitrous oxide is also an ozone-depleting substance that has natural sources in addition to anthropogenic ones. Moreover, unlike CFCs, its use and emission are not regulated by the Montreal Protocol, which has helped to reverse the rate of growth of the ozone hole. Surprisingly, Ravishankara et al. (p. 123 , published online 27 August; see the Perspective by Wuebbles ) now show that nitrous oxide is the single greatest ozone-depleting substance that, if its emissions are not controlled, is expected to remain the dominant ozone-depleting substance throughout the 21st century. Reducing nitrous oxide emissions would thus enhance the rate of recovery of the ozone hole and reduce the anthropogenic forcing of climate. |
format |
Article in Journal/Newspaper |
author |
Ravishankara, A. R. Daniel, John S. Portmann, Robert W. |
spellingShingle |
Ravishankara, A. R. Daniel, John S. Portmann, Robert W. Nitrous Oxide (N 2 O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century |
author_facet |
Ravishankara, A. R. Daniel, John S. Portmann, Robert W. |
author_sort |
Ravishankara, A. R. |
title |
Nitrous Oxide (N 2 O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century |
title_short |
Nitrous Oxide (N 2 O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century |
title_full |
Nitrous Oxide (N 2 O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century |
title_fullStr |
Nitrous Oxide (N 2 O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century |
title_full_unstemmed |
Nitrous Oxide (N 2 O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century |
title_sort |
nitrous oxide (n 2 o): the dominant ozone-depleting substance emitted in the 21st century |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2009 |
url |
http://dx.doi.org/10.1126/science.1176985 https://www.science.org/doi/pdf/10.1126/science.1176985 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Science volume 326, issue 5949, page 123-125 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.1176985 |
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Science |
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326 |
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5949 |
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123 |
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125 |
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