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What did scientists find when they studied the effectiveness of acid rain legislation on the earth?

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The results they reported were mixed: while sulfates (the main acidifying water pollutant from acid rain) were lower, only some areas showed a decrease in overall acidity. It remained to be determined whether more time or a greater reduction in sulfur emissions was needed to reduce freshwater acidity in all areas.

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Get more facts and information about acid rain . Or, view the full encyclopedia entry from The Columbia Encyclopedia, Sixth Edition.

Similar questions: Was the overall acidity of the areas studied in 1999 down or up? Which pollutant was down in the 1999 study of acid rain effects? [ Hide these questions ]

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