Synopsis by Alice Day
The unpredictable nature of volcanoes continues to challenge geologists, who hope one day to provide accurate early warnings for eruptions. Many active volcanoes exist in areas of dense populations, and the violence of their eruptions can mean disaster for residents. Understanding Volcanoes is another entry in the series from the Discovery Channel, and explains what scientists look for as they investigate means for predictions. The movement of tectonic plates and other forces affect volcanic activity, and continued study in these areas will yield further knowledge.