NASA Study Shows That Common Coolants Contribute to Ozone Depletion
Greenbelt MD (SPX) Oct 23, 2015 - The ozone layer comprises a belt of ozone molecules located primarily in the lower stratosphere. It is responsible for absorbing most of the sun's harmful ultraviolet radiation before it reaches Earth's surface. Research in the 1990s showed that HFCs, which have replaced more powerful ozone-depleting chemical coolants in recent years, destroy a negligible amount of ozone. But that conclusion was ... more

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