Acid Rain Program

United States government program

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In emissions trading: Acid rain and greenhouse gases
…large-scale practical application in the Acid Rain Program run by the U.S. Environmental Protection Agency in the 1990s. In 1990, amendments to the U.S. Clean Air Act of 1970 called for a halving of emissions of sulfur dioxide (SO₂) within two decades, along with a parallel ambitious reduction in emissions…
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