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      Scientific American April 1992

      Waste Not...

      New pollution laws will be considered this spring

      • By Tim Beardsley

      This is a preview. Make a selection below to access this issue.Already have access? Sign in.

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      More in the April 1992 issue of Scientific American
      • Ballpark Physics
      • First-Class Culprit
      • Solid Acid Catalysts
      View Full Contents
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