How Earth Made Us – Human Planet episode 5: Professor Iain Stewart explores the most recently established force – humans. It’s easy to think of the human impact on the planet as a negative one, but as Iain discovers, this isn’t always the case. It is clear that humans have unprecedented control over many of the planet’s geological cycles. The question is, how will the human race use this power?
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.