The second installment of "Earth's Fiery Pulse" explores the top five most devastating volcanic eruptions in Earth's history, from modern-day disasters, all the way back to 74,000 years ago. From the dawn of geologic time, volcanoes have been some of the most catastrophic natural disasters, capable of unleashing burning clouds and millions of tons of ash that blocks the sun and alters the temperature of the entire planet. Explore what makes these violent eruptions so deadly, and the fascinating ways they have shaped our world.

The second installment of "Earth's Fiery Pulse" explores the top five most devastating volcanic eruptions in Earth's history, from modern-day disasters, all the way back to 74,000 years ago. From the dawn of geologic time, volcanoes have been some of the most catastrophic natural disasters, capable of unleashing burning clouds and millions of tons of ash that blocks the sun and alters the temperature of the entire planet. Explore what makes these violent eruptions so deadly, and the fascinating ways they have shaped our world.