Volcanic gases, including sulfur dioxide, combined with moisture in the air to form vast toxic clouds that soon gave rise to acid rain. Roughly 10,000 people were killed immediately, and tens of ...

She believes that the Permian extinction was caused by acid rain following a massive release of volcanic gases. She wants to compare tree pollen from a modern forest killed by acid rain with ...

And after a few years, just after the winter finally ends, those gasses would start to fall from the sky as acid rain. When the Laki volcano erupted in 1783 in Iceland, it rained down so much ...

Acid rain is one of the most destructive environmental threats to forests and their inhabitants. From weakening trees to harming wildlife, this invisible danger is reshaping entire ecosystems. Learn ...