Tonight: Volcanoes and iceEARTH: THE BIOGRAPHY explores the geologic and climatic factors that shape our planet and investigates the effect of human existence on the Earth's delicate balance. Host Dr. Iain Stewart travels the world to experience the awesome force of volcanoes, the cavernous depths of the oceans, and the raw power of shifting glaciers.
National Geographic Channel, multiple nights, starting tonight at 9:00 PST, check local listings.
Link:
http://channel.nationalgeographic.com/