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Environmental effects of ozone depletion and its interaction with climate change: Progress report 2007

Author:
  • Anthony Andrady
  • Pieter J. Aucamp
  • Alkiviadis F. Bais
  • Carlos L. Ballaré
  • Lars Olof Björn
  • Janet F. Bornman
  • Martyn M. Caldwell
  • Anthony P. Cullen
  • David J. Erickson
  • Frank R. De Gruijl
  • Donat-P. Häder
  • Mohammad Ilyas
  • G. Kulandaivelu
  • H.D Kumar
  • Janice Longstreth
  • Richard L. McKenzie
  • Mary Norval
  • Nigel Paul
  • Halim Hamid Redhwi
  • Raymond C. Smith
  • Keith P. Solomon
  • Barbara Sulzberger
  • Yukio Takizawa
  • Xiaoyan Tang
  • Alan H. Teramura
  • Ayaiko Torikai
  • Jan C. van der Leun
  • Stephen R. Wilson
  • Robert C. Worrest
  • Richard G. Zepp
Publishing year: 2008
Language: English
Pages: 15-27
Publication/Series: Photochemical and Photobiological Sciences
Volume: 7
Issue: 1
Document type: Journal article review
Publisher: Royal Society of Chemistry

Abstract english

This year theMontreal Protocol celebrates its 20th Anniversary. In September 1987, 24 countries signed the ‘Montreal Protocol on Substances that Deplete the Ozone Layer’. Today 191 countries have signed and have met strict commitments on phasing out of ozone depleting substances with the result that a 95% reduction of these substances has been achieved. The Montreal Protocol has also contributed to slowing the rate of global climate change, since most of the ozone depleting substances are also effective

greenhouse gases. Even though much has been achieved, the future of the stratospheric ozone layer relies on full compliance of the Montreal Protocol by all countries for the remaining substances, including methyl bromide, as well as strict monitoring of potential risks from the production of

substitute chemicals. Also the ozone depleting substances existing in banks and equipment need special attention to prevent their release to the stratosphere. Since many of the ozone depleting substances already in the atmosphere are long-lived, recovery cannot be immediate and present projections estimate a return to pre-1980 levels by 2050 to 2075. It has also been predicted that the interactions of the effects of the ozone layer and that of other climate change factors will become increasingly important.

Keywords

  • Biological Sciences
  • ultraviolet-B radiation UV-B ozone depletion climate change

Other

Published
  • ISSN: 1474-9092
Lars Olof Björn
E-mail: lars_olof [dot] bjorn [at] biol [dot] lu [dot] se

Professor emeritus

Molecular Cell Biology

+46 46 222 72 53

B-A340

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