Acid rain refers to all types of precipitation--rain, snow, sleet, hail, fog--that is acidic in nature. Acidic means that these forms of water have a pH lower than the 5.6 average of rainwater. Acid rain kills aquatic life, trees, crops and other vegetation, damages buildings and monuments, corrodes...

Acid Rain Backgrounder Purpose of this file: To provide a primer on acid rain for environmental journalists. Copyright 1994. Acid rain refers to all types of precipitation--rain, snow, sleet, hail, fog--that is acidic in nature. Acidic means that these forms of water have a pH lower than the 5.6 ...

In the past century, one of the greatest threats to North America's water system has been the widespread acid rain spread through thousands of waterways. Acid rain has affected plant and animal life within aquatic ecosystems, as well as microbiologic activity by affecting the rates of decomposition...