Acid Rain Within this past century, acidity of the air and acid rain have become recognized as one of the leading threats to our planet’s environment. No longer limited by geographic boundaries, acid causing emissions are causing problems all over the world. Some laws have been passed which limit the amount of pollutants that are released into the air, but tougher legislation must be implemented before this problem can be overcome. Acid rain is produced, when automobiles, smelters, power plants, and other industrial factories burn fossil fuels such as gasoline, coal, and fuel oils. When combusted, the non renewable resources release pollutants such as sulfur, carbon and nitrogen oxides into the a