Reference Terms
from Wikipedia, the free encyclopedia

Ozone depletion

Ozone depletion describes the observed loss of ozone in the stratosphere over the past 50 years.

It encompasses both a steady thinning of the ozone layer at mid-latitudes and its catastrophic springtime collapse at the poles, often called the ozone hole.

Note:   The above text is excerpted from the Wikipedia article "Ozone depletion", which has been released under the GNU Free Documentation License.
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