Extreme Environments: Earth Video

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Extreme Environments: Earth (2008)

Episode 26
Available worldwide

The Earth is roughly four and a half billion years old, and life started to emerge shortly after the first billion. Our planet’s atmosphere has a high proportion of one of the world’s most reactive elements – oxygen. It is the product of green plants and is essential for the survival of all animal life. Tropical forests help replenish oxygen in our atmosphere, taking the carbon dioxide from the air and converting it to oxygen with the help of the sun and water.

Evan Clark


Ocean Video
Episode 1 Ocean
Ocean (2008)
Episode 1
, 24 minutes
Seventy percent of the planet’s surface is covered by oceans, and, thanks in part to global warming, they are changing rapidly.
Available worldwide
Desert Video
Episode 2 Desert
Desert (2008)
Episode 2
, 24 minutes
Some parts of our planet receive so little rain they can only support specially adapted plants and animals.
Available worldwide
Ice Video
Episode 3 Ice
Ice (2008)
Episode 3
, 23 minutes
The frigid zones play a vital role in the planet’s climatic system in ways we are only just beginning to glimpse.
Available worldwide
Atmosphere Video
Episode 4 Atmosphere
Atmosphere (2008)
Episode 4
, 23 minutes
Our planet is covered by a vast ocean of air – a layer of gasses that supports all life on earth.
Available worldwide

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