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Article: Scientists Say Man-Made Chemicals Caused Ozone Hole
- Article from:
- The Washington Post
- Article date:
- December 20, 1994
CopyrightThis material is published under license from the Washington Post. All inquiries regarding rights should be directed to the Washington Post. (Hide copyright information)
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Information provided by a NASA satellite proves that
man-made chemicals caused the ozone hole over the south pole and the
global thinning of the protective ozone layer, scientists said
yesterday.
The crucial evidence, said Mark Schoeberl, was the detection in
the stratosphere of hydrogen fluoride, a chemical species that comes
only from man-made sources.
Schoeberl, project scientist for the Upper Atmosphere Research
Satellite, said the amount of hydrogen fluoride measured by the
satellite corresponds directly to the amount of chlorofluorocarbons
in the atmosphere. That means that the thinning of the ozone layer
cannot be caused by chemicals from volcanoes or from any other
natural ...