February 28, 2007
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Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999
FROM VOLUME 7, NUMBERS 11-12, NOVEMBER-DECEMBER 1994
NEWS... RESEARCH NEWS
solar index: U.S. and French researchers have assembled a new
reconstruction of sunspot number over the past three centuries.
Some new features of the record could have implications for
climate research. (See Hoyt paper in Prof. Pubs./Gen.
Interest/Science, and New Scientist, p. 21, Oct. 29.)
impacts: New data collected in the lower stratosphere
indicate that nitrogen radicals (which would be emitted by
supersonic aircraft) do not destroy ozone there as previously
thought. (See Wennberg paper in Prof. Pubs./Aircraft Emissions,
and Chem. Eng. News, pp. 6-7, Oct. 24.)
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