'How Earth Made Us' starts on Tuesday January 19th on BBC Two at 9pm
Iain Stewart tells the epic story of how the planet has shaped our history. With spectacular images, surprising stories and a compelling narrative, the series discovers the central role played in human history by four different planetary forces.
In this first episode Iain explores the relationship between the deep Earth and the development of human civilisation. He visits an extraordinary crystal cave in Mexico, drops down a hole in the Iranian desert and crawls through seven-thousand-year-old tunnels in Israel.
His exploration reveals that throughout history, our ancestors were strangely drawn to fault line, areas which connect the surface with the deep interior of the planet. These fault lines gave access to important resources, but also brought with them great danger.
Official series web page
The Deadliest Place on Earth? The Giant Crystal Cave of Naica
Cueva de los Cristales is one of the most incredible and beautiful places on the planet - it also happens to be one of the deadliest.
'It's 50oC and has a humidity of 100%, less than a hundred people have been inside and it's so deadly that even with respirators and suits of ice you can only survive for 20 minutes before your body starts to fail. It’s the nearest thing to visiting another planet – it’s going deep inside our own.' Read the rest of an accounr by Assistant producer Paul Williams on his blog
Watch an exclusive behind the scenes interview with presenter Iain Stewart (unfortunately only viewable in the UK)