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Nitrous oxide delays ozone recovery

The stratospheric ozone layer has undergone severe depletion as a result of anthropogenic halocarbons. Although the Montreal Protocol has provided relief, anthropogenic emissions of another substance, nitrous oxide, are set to dominate ozone destruction.

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Figure 1: Influence of greenhouse-gas emissions on stratospheric ozone concentration in northern mid-latitudes.

References

  1. World Meteorological Organization Scientific Assessment of Ozone Depletion: 2006 (Global Ozone Research Monitoring Project Report 50, WMO, 2007).

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Chipperfield, M. Nitrous oxide delays ozone recovery. Nature Geosci 2, 742–743 (2009). https://doi.org/10.1038/ngeo678

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