Scientists are warning that glaciers melting due to global warming could trigger explosive and potentially deadly volcanic eruptions worldwide. As detailed in a study presented at the Goldschmidt international geochemistry conference this week, researchers from the University of Wisconsin-Madison analyzed six volcanoes in southern Chile to study how retreating ice sheets may have influenced past volcanic behavior. Using advanced argon dating and crystal analysis methods, they found that around the peak of the last ice age, around 20,000 years ago, a thick ice cover subdued volcanic activity, allowing a huge reservoir of magma to accumulate six to nine miles below […]