We've known about the hole in the ozone layer over the Antarctic for a few decades. An
article on Live Science back in October of 2011 talked about the first time there was a significant enough loss of ozone over the Arctic to be considered a hole. Due to the seasonal conditions that cause the the hole in the Antarctic, it usually appears in early spring. The Arctic's hole followed the same pattern and appeared last March. Will we see a hole appearing above the Arctic this spring, too?
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