A Brighter Outlook for Good Ozone

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Science  06 Sep 2002:
Vol. 297, Issue 5587, pp. 1623-1625
DOI: 10.1126/science.297.5587.1623

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The latest quadrennial assessment of the state of the protective stratospheric ozone layer finds that restraints on production of ozone-destroying chemicals such as chlorofluorocarbons are having the intended effect. The concentration of the prime offender, chlorine, is at or near a peak in the stratosphere. And an improved scientific understanding of stratospheric ozone is reassuring scientists that the world has probably seen the worst of ozone loss.