Chemical Sciences Laboratory
CSL
Ozone 1998
Executive Summary
Preface
Introduction
Recent Major Scientific Findings and Observations
Supporting Scientific Evidence and Related Issues
Implications for Policy Formulation
Frequently Asked Questions About Ozone
Introduction
How can chlorofluorocarbons (CFCs) get to the stratosphere if they're heavier than air?
What is the evidence that stratospheric ozone is destroyed by chlorine and bromine?
Does most of the chlorine in the stratosphere come from human or natural sources?
Can natural changes such as the Sun's output and volcanic erruptions be responsible for the observed changes in ozone?
When did the Antarctic ozone hole first appear?
Why has an ozone hole appeared over Antarctica when CFCs and halons are released mainly in the Northern Hemisphere?
Is there an ozone hole over the Arctic?
Is the depletion of the ozone layer leading to an increase in ground-level ultraviolet radiation?
Does ozone depletion cause climate change?
How severe is the ozone depletion now?
Is the ozone layer expected to recover? If so, when?
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Authors, Contributors, and Reviewers
Home
Assessments
Ozone
1998
Scientific Assessment of Ozone Depletion: 1998
Report Downloads
Contents, Preface, Executive Summary
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
Chapter 12
Frequently Asked Questions About Ozone
Appendices
