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by E.k. Rideal
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The ozone gas layer in the upper atmosphere is essential for life on earth because it prevents harmful ultraviolet rays from reaching the ground. On Earth, however, ozone can be harmful to living things. The debate over ozone's dual nature is explored as scientists, policy makers, and the public confront ozone smog on earth and the ozone hole in the upper atmosphere.
Card catalog description
Discusses the nature and necessity of ozone in relation to the global environment and air pollution, and examines the greenhouse effect and ways to prevent it.
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