Global Climate Change Digest: Main Page | Introduction | Archives | Calendar | Copy Policy | Abbreviations | Guide to Publishers


GCRIO Home ->arrow Library ->arrow Archives of the Global Climate Change Digest ->arrow April 1996 ->arrow NEWS... ARCTIC OZONE LOSS Search

U.S. Global Change Research Information Office logo and link to home

Last Updated:
February 28, 2007

GCRIO Program Overview

 

 

Library 
Our extensive collection of documents.

 

Get Acrobat Reader

Privacy Policy

Global Climate Change DigestArchives of the
Global Climate Change Digest

A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999

FROM VOLUME 9, NUMBER 4, APRIL 1996

NEWS...
ARCTIC OZONE LOSS


Item #d96apr54

Record low levels of stratospheric ozone were recorded in Britain in early March as the cold polar vortex took an unusual excursion from the Arctic. This event was the climax of significant Arctic ozone loss observed this winter beginning in mid-January. The World Meteorological Organization announced that record low readings occurred over much of the Northern Hemisphere, bringing average ozone levels since mid-January to about 10 percent below the long-term (1957-1979) mean. For brief intervals, the ozone deficiency over Greenland, Scandinavia and Western Siberia was as much as 45 percent.

The depletion is believed to result from ozone-destroying chemicals, aggravated by recently colder than normal temperatures in the stratosphere, which encourage the formation of polar stratospheric clouds. Possible causes of these colder temperatures include climate change related to greenhouse gases, and changes in the radiation balance related to the thinning ozone layer.

The new results were announced shortly before a planned meeting in March of research managers for Parties to the Montreal Protocol, and prompted agreement there on the need for more financial support for ozone research and monitoring. The topic will be pursued further at a November meeting of the Contracting Parties to the Vienna Convention, which provides the general framework for the Montreal Protocol on ozone layer protection.

See (all 1996): Intl. Environ. Rptr., pp. 212-213, Mar. 20 and p. 251, Apr. 3; New Scientist, p. 7 (article) and p. 3 (editorial), Mar. 16 (both emphasizing the need for research and monitoring); and a feature discussion in Global Environ. Change Rep., pp. 1-3, Mar. 22.

  • Guide to Publishers
  • Index of Abbreviations

  • Hosted by U.S. Global Change Research Information Office. Copyright by Center for Environmental Information, Inc. For more information contact U.S. Global Change Research Information Office, Suite 250, 1717 Pennsylvania Ave, NW, Washington, DC 20006. Tel: +1 202 223 6262. Fax: +1 202 223 3065. Email: Web: www.gcrio.org. Webmaster:
    U.S. Climate Change Technology Program Intranet Logo and link to Home