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 ...

Acid rain is likely to fall from the skies in Hawaii over the next few days — but scientists say it won't be harmful and is far from the main volcano hazard residents should worry about.

Letters, and led by John Battles, professor of forest ecology at the University of California, Berkeley, also presents strong evidence that acid rain impairs forest health. The paper reports on 15 ...