Acid rain describes any form of precipitation that contains high levels of nitric and sulfuric acids. It can also occur in the form of snow, fog, and tiny bits of dry material that settle to Earth.

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The volcanic eruption caused the emission of sulphur dioxide gas which spread over parts of the Middle East on November 23 ...

Acid rain has been greatly reduced but tons of toxis still drift down each year. MARCH 4, 2013— -- Acid rain commanded as much attention in the 1990s as global warming or the hole in the ozone ...

(CNN) -- After surviving earthquakes and molten lava, residents of Hawaii's Big Island now have new threats to worry about: steam-driven explosions, hazardous volcanic smog and acid rain. The US ...

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. Instead, it's ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. After earthquakes and molten lava tore open ...

When acidic components get into rain or other forms of precipitation, acid rain can make trees die. It won't hurt you to walk or swim in acid rain, but the particles that cause it may hurt your lungs ...