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Twenty Questions and Answers About the Ozone Layer: 2010 Update

2010 Ozone Assessment Twenty Questions and Answers About the Ozone Layer cover

Scientific Assessment of Ozone Depletion: 2010

World Meteorological Organization Global Ozone Research and Monitoring Project - Report No. 52

National Oceanic and Atmospheric Administration

National Aeronautics and Space Administration

United Nations Environment Programme

World Meteorological Organization

European Commission



Coordinating Lead Authors

David W. Fahey
NOAA ESRL Chemical Sciences Division USA

Michaela I. Hegglin
University of Toronto Canada

Reviewers and Contributors

Ross J. Salawitch (Special Recognition)
University of Maryland USA

Stephen A. Montzka (Special Recognition)
NOAA ESRL Global Monitoring Division USA

Stephen O. Andersen (Special Recognition)
Montreal Protocol Technology and Economic Assessment Panel (TEAP) USA


Pieter J. Aucamp
Ptersa South Africa

Alkiviadis F. Bais
Aristotle University of Thessaloniki Greece

Peter F. Bernath
University of York UK

Gregory E. Bodeker
Bodeker Scientific New Zealand

Janet F. Bornman
University of Waikato New Zealand

Geir O. Braathen
World Meteorological Organization Switzerland

Peter Braesicke
University of Cambridge, National Centre for Atmospheric Science UK

Irene Cionni
Deutsches Zentrum für Luft- und Raumfahrt, Institut für Physik der Atmosphäre Germany

Martin Dameris
Deutsches Zentrum für Luft- und Raumfahrt, Institut für Physik der Atmosphäre Germany

John S. Daniel
NOAA ESRL Chemical Sciences Division USA

Susana B. Diaz
INGEBI / CADIC / Consejo Nacional de Investigaciones Cientificas Argentina

Ellsworth G. Dutton
NOAA ESRL Global Monitoring Division USA

James William Elkins
NOAA ESRL Global Monitoring Division USA

Christine A. Ennis
CIRES-University of Colorado / NOAA ESRL Chemical Sciences Division USA

Veronika Eyring
Deutsches Zentrum für Luft- und Raumfahrt, Institut für Physik der Atmosphäre Germany

Vitali E. Fioletov
Environment Canada Canada

Marvin A. Geller
Stony Brook University USA

Sophie Godin-Beekmann
Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS)/UPMC, CNRS France

Malcolm K.W. Ko
NASA Langley Research Center USA

Kirstin Krüger
IFM-GEOMAR / Leibniz-Institute of Marine Sciences at Kiel University Germany

Lambert Kuijpers
Technical University, Eindhoven Center for Sustainability The Netherlands

Michael J. Kurylo
Goddard Earth Sciences and Technology Center / University of Maryland Baltimore County USA

Igor Larin
Russian Academy of Sciences Russia

Gloria L. Manney
Jet Propulsion Laboratory, California Institute of Technology / New Mexico Institute of Mining and Technology USA

C. Thomas McElroy
Environment Canada Canada

Rolf Müller
Forschungszentrum Jülich Germany

Eric R. Nash
Science Systems and Applications, Inc. USA

Paul A. Newman
NASA Goddard Space Flight Center USA

Samuel J. Oltmans
OAA ESRL Global Monitoring Division USA

Nigel D. Paul
Lancaster University UK

Judith Perlwitz
CIRES-University of Colorado / NOAA ESRL Physical Sciences Division USA

Jean-Pierre Pommereau
Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), CNRS France

Claire E. Reeves
University of East Anglia / National Centre for Atmospheric Sciences UK

Stefan Reimann
Swiss Federal Laboratories for Materials Science and Technology (Empa) Switzerland

Alan Robock
Rutgers University USA

Michelle L. Santee
Jet Propulsion Laboratory, California Institute of Technology USA

Dian J. Seidel
NOAA Air Resources Laboratory USA

Theodore G. Shepherd
University of Toronto Canada

Peter Simmonds
University of Bristol, School of Chemistry UK

Anne Smith
National Center for Atmospheric Research, Atmospheric Chemistry Division USA

Richard S. Stolarski
NASA Goddard Space Flight Center USA

Matthew B. Tully
Australian Bureau of Meteorology Australia

Guus J.M. Velders
Netherlands Environmental Assessment Agency (PBL) The Netherlands

Elizabeth C. Weatherhead
CIRES-University of Colorado / NOAA ESRL Global Systems Division USA

Ann R. Webb
University of Manchester, School of Earth, Atmospheric, and Environmental Sciences UK

Ray F. Weiss
Scripps Institution of Oceanography, University of California, San Diego USA

Durwood Zaelke
Institute for Governance and Sustainable Development USA

Coordinating and Technical Editor

Christine A. Ennis
CIRES-University of Colorado / NOAA ESRL Chemical Sciences Division USA

Graphic Art, Publication Layout and Design

Dennis Dickerson
Respond Grafiks USA

Editorial Assistance and Technical Management

Debra Dailey-Fisher
NOAA ESRL Chemical Sciences Division USA

Editorial Assistance

Jennifer Fox
CIRES-University of Colorado / NOAA ESRL Chemical Sciences Division USA