Acid rain is a very broad term. It encompasses not only rain but also other forms of precipitation including fog, hail, sleet, snow, dust, and gas. It can even cause haze or smog, contributing to the ...

NORFOLK, Va. — Acid rain is a serious environmental problem caused by air pollution. It forms when sulfur dioxide and nitrogen oxides are released into the atmosphere, mainly from burning fossil fuels ...

Acid rain from fossil fuel pollution may be quietly training soil bacteria to become longer-lived, more transmissible, and more deadly, according to a new study in the journal New Contaminants that ...

The following essay is reprinted with permission from The Conversation, an online publication covering the latest research. Reports are emerging of black rain falling over parts of Iran in the hours ...