Scientists discover a major thinning in the protective atmosphere over Arctic
Web edition : 6:47 pm
Scientists saw something missing in the skies over the North Pole this spring, and it wasn?t Santa or his reindeer. It was ozone ? an invisible gas that protects Earth and everything on it from the sun?s harmful ultraviolet rays.
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Found in: Science News For Kids
Source: http://www.sciencenews.org/view/generic/id/335326/title/FOR_KIDS_Ozone_hits_a_new_low
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