According to the volcanism hypothesis, this global-scale volcanic activity spewed so much gas, ash, and dust into the atmosphere that it kept sunlight from reaching Earth's surface. Temperature ...

For years, the prevailing theory was that these fossils were preserved ... ruling out a single catastrophic event. "We can rule out volcanism on several counts," said Paul Olsen, a co-author ...

Massive volcanic eruptions did not cause the extinction of dinosaurs, according to a new study. Volcanoes on the Indian ...