How has the United States tried preventing acid rain?



  1. 0 Votes

    The US government passed the Acid Deposition Act in 1980, an 18 year research project analyzing long term trends and impacts of acid rain.  

    In 1990, amendments were made to the Clean Water Act which included a program to monitor and reduce sulfur dioxide emissions, the primary cause of acid rain.  Roughly 10 million tons of sulfur emissions were reduced in a 10 year span.  Emissions of nitrogen dioxide were also significantly reduced.

    In 2005, the Clean Air Interstate Rule was passed to deal with emissions drifting from one state to another.  The plan permanently caps nitrogen and sulfur dioxides in 28 states.

    Since 1990, substantial progress has been made.

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