See how different types of weather form and the effect that climate has on our world. Part of the 'Eyewitness' video series.

Learn about the forces inside the Earth that cause volcanoes to erupt and earthquakes to shake the landscape.

"Explores the dangerous and destructive forces of nature, from hurricanes to volcanoes, tornadoes to avalanches and earthquakes. Rare footage reveals the Earth at its most violent. The making of Eyewitness (written and produced by Bill Butt ; director/cameraman Mike Kamei ; music by Guy Michelmore) shows the camera and computer techniques used in the production of the series opening screens." --