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Ozone Hole Over Antarctica
October 16, 2000
Last week, scientists at the National Oceanic and Atmospheric Administration announced that the ozone hole over Antarctica formed earlier and grew bigger this year than ever before (or at least since they have measured it). The hole is now comparable in size to all of North America, almost twice as large as it was nine years ago. Many had believed that the hole would begin to decrease in size. Now scientists are stuck trying to figure out why it isn’t. One theory is that variations in the Antarctic weather is the cause. Another possibility is that global warming is behind it.


produced by Brad Kloza


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