The reveal of chlorofluorocarbons' (CFCs) potential to destroy the ozone layer in the Earth’s stratosphere was a life-changing discovery. In 1974, atmospheric chemist and 1995 chemistry laureate Mario Molina and his co-laureate Sherwood Rowland demonstrated that CFC gases, freons, have a damaging effect on ozone in the atmosphere. Freons had many uses, including propellants in spray cans and refrigerants in refrigerators. By limiting the use of freons, the depletion of the ozone layer was slowed
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The discovery that chlorofluorocarbons (CFCs) destroy the ozone layer in the Earth’s stratosphere paved the way for an extraordinary international effort to fight environmental degradation. Learn more: https://t.co/7eQbPDigqKVideo: The false-colour view of the monthly-averaged total ozone over the Arctic pole. The blue and purple colors are where there is the least ozone, and the yellows and reds are where there is more ozone. Credit: NASA Ozone Watch.
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