The BBC's science dept has out-done itself recently, and this series is one of the most lively and engaging they've produced. It looks at how the geology of our planet has shaped human development and society, and uses stunning photography from around the globe to illustrate each episode.
I enjoyed Professor Iain Stewart's previous series
Earth : The Power of the Planet - Complete BBC Series [DVD], and he's a very likeable, down to earth and knowledgeable presenter. That's just as well because he's on screen for most of each hour-long episode he and provides the narration, too; there may well be a team of researchers working in the background but few other experts or talking heads play a part in this series.
Instead, Prof Stewart travels to iconic, beautiful locations like the Sahara desert, the West African coast, a crystal cave in Mexico, holes in the Iranian desert, frozen Iceland, the Indian monsoon and a salt glacier (an extraordinary sight indeed), while examining how geological forces have played a part in the rise and fall of various human civilisations.
Different episodes look at volcanoes and earthquakes; the forces of the wind and how it affects weather and trade, water and our use of it in irrigation, and fire; oil, and the industrial revolution. Some of the snapshots are obvious and familiar, and an explanation of why fault lines cause earthquakes was extremely timely. But some of the segments are utterly unexpected and wonderful, like the astonishing crystal cave (which will look wonderful in high-definition) and the amazing living bridge in the Himalayas which withstands the rushing floodwaters every year.
Things get a little bit maudlin when Prof Stewart considers the slave trade, and again when he gives a mini-lecture on how some civilisations fell because they failed to take good care of scant resources. It's hard to give a lecture on living frugally and taking care of the planet when you've obviously been galloping around it for the sake of entertainment - although there is quite a bit of striking new footage in these films, plenty of it could have been illustrated by archive material and all those air miles could have been saved...
However, the majority of the programmes are heavy on information which is presented in an entertaining manner, and the moralising is kept to a minimum. There's quite a bit of use of graphics which come in really handy explaining how different wind systems work and why weather is so difficult to predict. I now know what the Jet Stream is! From that we can understand why some areas of the world were easier for Europeans to reach, and why certain trade routes developed, and why some islands took forever to be `found' by the first sailing ships.
Likewise, the role of fire in establishing the industrial revolution in the old world, with all of the effects that history has had on the modern world, was fascinating. The 'fire' episode in particular explains what the carbon cycle really is, and why it has been so important to the development of the modern world.
The final, fifth programme is also worthwhile (although leans a little towards the lecturing) as it explains what effect we have had upon the planet; humanity is another natural force and we have made earth in some ways...
Prof Stewart has produced a wonderfully intriguing series of visually impressive lectures, which really do explain just how the forces of our planet have shaped human society. Not a dull moment in them; and the DVD set comes with a behind the scenes documentary too. Suitable for all ages and any enquiring minds.
8/10