This is a series presented by Dr.Iain Stewart with his refreshing Scottish accent.He has presented this series of how the impact of "Volcano", "Atmosphere", "Ice", and "Oceans" affect the Earth.He finishes the series with his presentation why our planet is unique in the episode "Rare Earth". Few documentaries have me as riveted as this one as Dr.Stewart took me around the world into space and into volcanoes under the sea and ice.But for me the most remarkable of the whole series was the the salt mines in Sicily.The style of presentation of Dr.Stewart is very pleasant which will make it enjoyable for children and adults to watch. This documentary is at par with Life and Planet earth.Bravo to the makers of this documentaries and Dr.Stewart you do more for the environment than fear mongering it brings awareness through education.I hope people watch this on Blue ray to enjoy the great photography.