Why is the ozone hole observed over Antarctica when CFCs are released mostly in the Northern Hemisphere?

Gnomon

There is an Ozone hole over the Arctic as well as over the Antarctic. It's just that the one over the Antarctic is bigger. Wind patterns are strange things and nobody really knows why they end up the way they are. It could be because the summers are hotter in the southern hemisphere (the Earth is closer to the Sun) so the CFCs are more active. Dec 04 02, 8:33 AM

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