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posted by  Yubi | 6 years, 4 months ago in Science & Technology

Japan's Meteorological Agency says measurements made this year show that the hole in the ozone layer over Antarctica was the smallest one in nearly 30 years.

Chlorofluorocarbons and other man-made gases are blamed for depleting the ozone layer, which shields the Earth from harmful ultraviolet rays. The hole appears annually from August through December.