[00:00.65]Human beings venture into the highest parts of our planet at their peril.
[00:06.53]Some might think that by climbing a great mountain they have somehow conquered it, but we can only be visitors here.
[00:18.13]This is a frozen alien world. This is the other extreme - one of the lowest hottest places on earth.
[00:30.19]It's over 100 metres below the level of the sea. But here a mountain is in gestation.
[00:37.64]Pools of sulphuric acid are indications that deep underground there are titanic stirrings.
[00:47.14]This is the Danakil Depression in Ethiopia, lying within a colossal rent of the earth's surface where giant land masses are pulling away from one another.
[00:58.12]Lava rises to the surface through this crack in the crust creating a chain of young volcanoes.