S1, E1: A look at how there would be no life on Earth without volcanoes. Although destructive, magma from the planet's molten core builds land, and mineral-rich ash from eruptions fertilises the surface.

S1, E1: A look at how there would be no life on Earth without volcanoes. Although destructive, magma from the planet's molten core builds land, and mineral-rich ash from eruptions fertilises the surface.