'As extensive' presentation slideshows

SECTION 504

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This is a series of snapshots of Antarctic ozone, through the years, on the day that the

This is a series of snapshots of Antarctic ozone, through the years, on the day that the Ozone Hole is at its deepest. White sections of the map are areas where there are no data from the satellite. Each year the Ozone Hole reappears at roughly the same size, shape and depth.

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