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6 - The Ozone Hole

Black Swan at the Polar Dawn

from Part I - The Past

Published online by Cambridge University Press:  02 November 2021

R. Saravanan
Affiliation:
Texas A & M University
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Summary

The discovery of the Antarctic ozone hole in 1985 is chronicled, making the analogy with the concept of the “black swan,” a metaphor for unprecedented events. The ozone layer in the stratosphere acts as a shield for life on the Earth, by blocking harmful ultraviolet radiation from the sun. Concern mounted in the 1970s that compounds known as chlorofluorocarbons, used as refrigerants and coolants, could be slowly destroying the ozone layer. Joe Farman and the British Antarctic Survey (BAS) found that ozone levels in the stratosphere had dropped dramatically during the Antarctic spring season in the 1980s, creating a “hole” in the ozone layer. US scientist Susan Solomon led an expedition to make measurements of the ozone hole and worked with colleagues to explain the cause: cold Antarctic temperatures allowed the formation of polar stratospheric clouds that catalyzed chemical reactions involving CFCs, leading to rapid ozone loss.

Type
Chapter
Information
The Climate Demon
Past, Present, and Future of Climate Prediction
, pp. 87 - 98
Publisher: Cambridge University Press
Print publication year: 2021

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  • The Ozone Hole
  • R. Saravanan, Texas A & M University
  • Book: The Climate Demon
  • Online publication: 02 November 2021
  • Chapter DOI: https://doi.org/10.1017/9781009039604.009
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To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

  • The Ozone Hole
  • R. Saravanan, Texas A & M University
  • Book: The Climate Demon
  • Online publication: 02 November 2021
  • Chapter DOI: https://doi.org/10.1017/9781009039604.009
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • The Ozone Hole
  • R. Saravanan, Texas A & M University
  • Book: The Climate Demon
  • Online publication: 02 November 2021
  • Chapter DOI: https://doi.org/10.1017/9781009039604.009
Available formats
×