Did We Really Save the Ozone Layer?


Watts Up With That?

Guest essay by Steve Goreham

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Another year has passed and that stubborn Ozone Hole over Antarctica refuses to go away. Data from the National Aeronautics and Space Administration (NASA) shows that the Ozone Hole for the fall maximum season grew 22 percent from 2014 to 2015. World consumption of Ozone Depleting Substances has been reduced to zero over the last three decades, but the Ozone Hole is as large as ever. Did humans really save the ozone layer?

In 1974, Dr. Mario Molina and Dr. Sherwood Roland of the University of California published a paper asserting that chlorofluorocarbon (CFC) pollution from industry was destroying the ozone layer in Earth’s stratosphere. CFCs were gases used in hair spray, refrigerators, and insulating foams. The ozone layer is a layer of atmosphere located between 6 and 25 miles above the Earth’s surface.

The theory of Molina and Roland postulated that human-produced CFCs migrate…

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