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Category: Geology

- The Earth's Ozone Hole from 1979-2007
- Volcanoes may not be fed by magma mushrooms
- Sea 3-D: Charting the Ocean Floor
- Rockies Thrust Up
- Earthquakes: Breaking New Ground
- Underneath a glacier time lapse
- Volcanoes

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The Earth�s Ozone Hole from 1979-2007

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NASA's been tracking the thinning of the ozone layer the south pole for nearly 20 years. In this slowed-down animation, you can watch the ozone hole's average size each October.

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