Greenland ice cores show industrial record of acid rain

The rise and fall of acid rain is a global experiment whose results are preserved in the geologic record.

Report: Acid raid, ozone depletion contributed to ancient extinction

Around 250 million years ago, at the end of the Permian period, there was a mass extinction so severe that it remains the most traumatic known species die-off in Earth's history. Some researchers have suggested that this extinction was triggered by contemporaneous volcanic eruptions in Siberia.

Report: Eastern US water supplies threatened by a legacy of acid rain

Human activities are changing the water chemistry of many streams and rivers in the Eastern U.S., with consequences for water supplies and aquatic life, so reports a new study in the journal Environmental Science and Technology.