Scientific Assessment of Ozone Depletion: 2014

2014 Assessment cover

The most recent WMO/UNEP assessment, Scientific Assessment of Ozone Depletion: 2014, contains the most up-to-date understanding of ozone depletion. It reflects the thinking of hundreds of international scientific experts who contribute to its preparation and review. Cochairs of this Assessment are Dr. A.R. Ravishankara of Colorado State University and the NOAA ESRL Chemical Sciences Division, USA, Dr. Paul A. Newman of the NASA Goddard Space Flight Center, USA, Dr. John A. Pyle of the University of Cambridge, UK, and Dr. Ayité-Lô Nohende Ajavon of the North-South Environment, Togo. Other members of the ESRL Chemical Sciences Division are making substantial contributions to the report, serving as coauthors, contributors, reviewers, coordinating editor, and editorial and computing support staff.

This Assessment consists of an Assessment for Decision-Makers PDF file, five detailed scientific chapters, and the "Twenty Questions and Answers About the Ozone Layer: 2014 Update."



Contents

Preface

Executive Summary: Assessment for Decision-Makers


Scientific Summaries of the Chapters

Chapter 1: Update on ODSs and Other Gases of Interest to the Montreal Protocol

Chapter 2: Update on Global Ozone: Past, Present, and Future

Chapter 3: Polar Ozone: Past, Present, and Future

Chapter 4: Stratospheric Ozone Changes and Climate

Chapter 5: Scenarios, Information, and Options for Policymakers

  • Table S5-1: Summary of mitigation options for accelerating the recovery of the ozone layer and reducing CO2-equivalent emissions

Twenty Questions and Answers About the Ozone Layer: 2014 Update