The Ozone Hole: Closing the Gap - NASA
Feb 13, 2019 · The Ozone Hole: Closing the Gap. YouTube. In the 1980s, scientists began to realize that ozone-depleting chemicals, such as chlorofluorocarbon (CFCs), were creating a thin spot—a hole—in the ozone layer over Antarctica. Through an international effort to decrease the use of CFCs, the ozone layer is starting to mend, and scientists believe ...
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