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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 2, NUMBER 9, SEPTEMBER 1989

NEWS...
EVIDENCE OF ARCTIC OZONE DEPLETION

Item #d89sep1

Measurements made by instruments on high-altitude balloons in January 1989 showed an apparent thinning in Arctic ozone between 22 and 26 kilometers altitude coinciding with increased numbers of cloud particles. The results, reported in the July 13, 1989, issue of Nature, suggest the beginning of ozone depletion similar to that which creates the Antarctic ozone hole. (See paper by Hofmann et al. in PROF. PUBS./OF GEN. INTEREST, this Global Climate Change Digest issue--Sep. 1989, and articles in Science News, p. 54, July 22, and New Scientist, p. 27, July.)

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