John Muir: The Scotsman who saved America's wild places

John Muir is regarded as the 'father of America's national parks' and is a towering figure in the history of that country's involvement with ecology.

Born into a harsh home in Dunbar, Scotland he would often escape to revel in the birds and wildlife of the area. When his father suddenly uprooted the family and moved to the United States, the oppression he associated with his childhood continued - and so did his involvement with the natural world.

Despite the difficulty of his formative year...