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A new study reveals the protective stratospheric ozone layer above the central United States is vulnerable to erosion during summer months from ozone-depleting chemical reactions, exposing people, livestock and crops to the harmful effects of UV radiation. Powerful storm systems common to the Great Plains inject water vapor that, with observed temperature variations, can trigger the same chemical reactions over the central United States that are the cause of ozone loss over the polar regions. [Source: Harvard University]
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