He was instrumental in getting chlorofluorocarbon (CFC) refrigerant production banned because they accelerated the destruction of stratospheric ozone over and near Antarctica in early spring.

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Its refrigerant is R-22, a chlorofluorocarbon that will probably leak out, taking to the sky, with the very slight chance that it will be wafted upward by a thunderstorm so powerful that it penetrates the stratosphere, depositing it where catalyzes the destruction of springtime ozone, especially over Antarctica.

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