character: Dr. Mario Molina
topic: Atmospheric Chemist, Effects of CFCs on Ozone Depletion
subject: Science
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character: Dr. F. Sherwood Rowland
topic: Ozone Layer Depletion Researcher
subject: Science
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character: Dr. Paul Crutzen
topic: Stratospheric Chemistry Expert
subject: Science
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character: NASA Scientists
topic: CFCs and Ozone Monitoring
subject: Science
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