Britain from Above

Andrew Marr goes on a journey to discover how some of the greenest landscapes in the British Isles were in fact shaped and moulded by human hands down the centuries.

He looks at the ancient 'wild wood' and Iron Age forts lurking in Britain's forests to the present-day strain modern economic needs put on the countryside, and how town planners restrict urban growth through the establishment of greenbelt areas.

He also looks down on Britain's national parks to show how we go to extraordinary lengths to preserve them as beautiful but artificial playgrounds. We also see how Britain's rugged landscape is used as the ideal testing ground for the Eurofighter.

Turning back time and drawing on previously unseen archive footage and photography to focus on the dramatic transformation of Britain's cities, landscape and industry. Focusing on the period since the Second World War, Britain from Above explores the greatest period of change in the nation in the last 200 years.

Nowhere shows the transformation that has swept the British countryside in the last 60 years more than East Anglia. Aerial photographs taken by both the RAF and the Luftwaffe before the war show an isolated rural landscape of small fields, hordes of labourers and horse drawn ploughs. But all that changed. Sparked by the war itself, East Anglia became the crucible of a land revolution as its agriculture was industrialised faster and on a larger scale than anywhere else.

Today hedgerows, horses and farm workers have all gone. While the number of people working on the land has collapsed, rural villages have grown, bursting through their old boundaries as commuters arrive. New roads and new employers such as Stansted Airport have heated up an already fast growing economy and the impact on the landscape can be clearly seen from above.

Using hitherto unseen land-use maps of the 1930s, together with wartime aerial reconnaissance photos, the programme reveals how and why East Anglia, and by extension Britain's rural landscape, has been shaped the way it has. Today we see a landscape under ever greater pressure from new housing, crowded roads and the sudden surge in food prices which makes farmland ever more valuable.

Andrew Marr microlights and paraglides through the skies, getting a buzzard's eye view of the nation's untamed and untameable landscape. Along the way, he joins geologists, meteorologists, amateur photographers and festival goers to explore Britain's geology, the impact of the weather on our shores and the riches hidden beneath our feet.

Microlighting down the Great Glen Fault in the Scottish Highlands, Andrew learns about the very origins of the nation, where England and Scotland collided over 400 million years ago. In Northern Ireland, he discovers where geologists looked down from above at a river containing gold flowing through the Sperrin Mountains. While paragliding on the Welsh borders, he finds out how to read the clouds before flying over the east coast of Norfolk, where the wind's destructive powers are shown to devastating effect.

Geology and weather also affect the country's wildlife and satellite tracking demonstrates the migration of birds from Senegal and Siberia to Britain's shores. Using thermal imaging that is normally employed to search out insurgents in war zones, the shy Sika deer is tracked along the land on Lulworth Range.

He concludes his journey at the Glastonbury Festival, where for three days a miniature society flowers which is crowded, cheerful, dirty and mildly anarchic, and which has a transport system that only just works - features that sound vaguely familiar to Andrew.

The story of how Britain's industrial heartlands have been transformed in the space of a single lifetime.

In 1939, the Luftwaffe secretly photographed the backbone of the British economy: the valleys of South Wales where the great coalfields powered the nation; Swindon, at the heart of Britain's railway network; and Manchester, home to the great port of Salford and the world's largest industrial estate Trafford Park.

Comparing those images with ones from 2008, the sheer scale and speed of change becomes vividly apparent. Where there were factories there are fields; mining villages no longer have mines; docks have been replaced by high-spec waterside apartments. Seen from above, it is clear that no other aspect of the nation has changed so much or so quickly. It is a story of evolution, adaptation, and in some places, extinction.