
About this book
Studies the important role of atmospheric ozone in protecting the Earth, and tells how man-made chemicals are causing worrisome holes in the polar ozone layers.
Subjects
AirChlorofluorocarbonsEnvironmental aspectsEnvironmental aspects of ChlorofluorocarbonsEnvironmental aspects of Ozone layer depletionJuvenile literatureOzoneOzone layerOzone layer depletionPollution