Old Air Conditioners and Refrigerators Are Keeping Us From Healing the Ozone Hole

In the 1930s, manufacturers began using chlorofluorocarbons—greenhouse gases made up of carbon, chlorine, and fluorine—as refrigerants for air conditioners, aerosol sprays, refrigerators, freezers, and more. The problem is, those chemicals depleted the ozone layer of the atmosphere, which blocks the sun’s damaging…

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via Gizmodo

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