The Hole in the Ozone Layer is a Big Problem (What year is it?)

An article from NASA talks about how there is still a hole in the Ozone layer and that it has come earlier than usual and is the fourth largest in size since 1991. The typical story of the hole in the ozone layer is that it was discovered in the late 1980s and that in response, governments banned the use of CFCs and other chemicals that break down ozone. While these practices helped, it turns out that they did not close the hole completely. It returns every year in the northern Fall/southern Spring. Here is the article link:OZONE.

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