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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 3, NUMBER 11, NOVEMBER 1990

NEWS...
1990 ANTARCTIC OZONE HOLE


Item #d90nov64

The 1990 ANTARCTIC OZONE HOLE is rivaling levels of depletion observed in 1987 and 1989, according to scientists at NASA's Goddard Space Flight Center interpreting initial data from the Total Ozone Mapping Spectrometer (TOMS). Although well past its planned lifetime, TOMS was recently recalibrated successfully using ground observations and the full 11 years of data on the ozone hole will soon be available. The results appear to break the recent pattern of years of strong depletion alternating with years of weak depletion. (See Science, p. 370, Oct. 19; New Scientist, p. 23, Oct. 20.)

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