Earth: The Power of the Planet

Dr Iain Stewart tells the story of how Earth works and how, over the course of 4.6 billion years, it came to be the remarkable place it is today. Dr Iain Stewart tells the story of how Earth works and how, over the course of 4.6 billion years, it came to be the remarkable place it is today. Dr Iain Stewart tells the story of how Earth works and how, over the course of 4.6 billion years, it came to be the remarkable place it is today. Dr Iain Stewart tells the story of how Earth works and how, over the course of 4.6 billion years, it came to be the remarkable place it is today.