Scientific Assessment of Ozone Depletion: 2018


Report Downloads

All of the assessment documents — core assessment, Executive Summary, and Twenty Questions booklet — are available as PDF downloads. In addition, the Executive Summary and chapter figures are available for download, in three formats: optimized for print [cmyk jpg], optimized for screen [rgb jpg], and png files optimal for presentations (i.e. PowerPoint). Figures from this report are in the public domain and may be used with proper attribution to source.

Example figure citation:

Figure 1-10: Engel, A. and M. Rigby (Lead Authors), J.B. Burkholder, R.P. Fernandez, L. Froidevaux, B.D. Hall, R. Hossaini, T. Saito, M.K. Vollmer, and B. Yao, Update on Ozone-Depleting Substances (ODSs) and Other Gases of Interest to the Montreal Protocol, Chapter 1 in Scientific Assessment of Ozone Depletion: 2018, Global Ozone Research and Monitoring Project — Report No. 58, World Meteorological Organization, Geneva, Switzerland, 2018.
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Executive Summary

Complete 2018 Scientific Assessment of Ozone Depletion


Cover, Contents, Executive Summary

Chapter 1: Update on Ozone-Depleting Substances (ODSs) and Other Gases of Interest to the Montreal Protocol

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Chapter 2: Hydrofluorocarbons (HFCs)

Chapter 3: Update on Global Ozone: Past, Present, and Future

Chapter 4: Polar Stratospheric Ozone: Past, Present & Future

Chapter 5: Stratospheric Ozone Changes and Climate

Chapter 6: Scenarios and Information for Policymakers

Appendix A: Summary of Abundances, Lifetimes, ODPs, REs, GWPs, and GTPs


Appendix B: Chemical Formulae and Nomenclature


Appendix C: Acronym Dictionary


Appendix D: List of Authors, Contributors, and Reviewers