Without volcanoes, life on Earth would never have begun; they are responsible for both the planet's breathable atmosphere and the oceans; mineral-rich ash from regular eruptions fertilize the land.

David Attenborough shows how life on planet Earth flourishes as result of a perfect balance of a whole array of factors.

A look at how the planet's limited fresh water is distributed around the globe thanks to storms, and how animals manage in the driest habitats on Earth.

David Attenborough shows how life on planet Earth flourishes as result of a perfect balance of a whole array of factors.

Humans are changing our planet so rapidly, it's affecting earth's life support systems: our weather, our oceans and the living world.