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EPA sounds ozone alarm.

EPA sounds stronger ozone alarm

Environment Protection Agency Director Lee M. Thomas last week called for a complete phaseout of the ozone-destroying industrial chemicals chlorofluorocarbons and halons. An international treaty negotiated last year will cut chlorofluorocarbon use by half and freeze the levels of halons consumed (SN: 4/9/88, p.234). New scientific work, however, suggests that only an elimination of these chemicals will stop a significant weakening of the ozone layer, says Thomas, who is calling for countries to strengthen the treaty.
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Publication:Science News
Date:Oct 8, 1988
Words:84
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