The Earth's Furies: Volcanic Explosions

52m 22s

Iceland, Indonesia, South America, the Reunion Island... The threat of volcanic eruptions never ceases to hound those who have chosen to live at the feet of volcanos on continents the world over. This threat requires humans to continually come up with new ways to both foresee the danger to come and to tame the violence of volcanoes; a violence that is indispensable to life on Earth. What do these volcanoes reveal about the way the Earth works?