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The holes in the ozone layer are not actual holes. They are thinning areas found about 23 degrees away from the poles of our planet. They occur, and have occurred for centuries.

The primary cause for each of these holes is natural. The thinning of these areas occurs because the sun is unable to hit that portion of the atmosphere during their respective solar winters. The largest "Hole" is believed to have occurred in 1856 during solar flare activity.

CFC's have been associated with making this issue worse. The actual affect is still an unknown issue, but there is evidence of the gas in this layer of our atmosphere. The entire ozone layer, if compressed to 1 atmosphere of pressure and at stp would be 3 mm thick. The loss of this layer would be very hard on our environment. To stop CFC's from being a questionable issue, they have been banned.

The short answer to the question though is yes, the two holes are about four months in total thinning action, from start to finish and do vary in size.

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14y ago

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