Our state is part of the region that consistently leads the nation in emissions of acid rain-producing sulfur dioxide and nitrogen oxides. Pennsylvania is a leader in acid rain in the U.S. Acid rain ...

The Biden administration is laying the groundwork for the rule’s legal defense before the Supreme Court, as industry and state challenges pile up. EPA is trying to cast its toughest-ever climate rule ...

In the 1970s, acid rain was one of the most serious environmental threats in North America and Europe. The air was so laden with pollution from coal power plants and cars at the time that it turned ...