Bbc Focus 2020

According to the UN, it is predicted that the human population could reach ten billion people by the year 2050. For broadcaster and naturalist Chris Packham, who has dedicated his life to championing the natural world, the subject of our growing population and the impact it is having on our planet is one of the most vital – and often overlooked – topics of discussion in an era of increasing environmental awareness.

Michael Portillo begins a new series of railway journeys through 1930s Britain, armed with an interwar Bradshaw's guide. He explores an unmistakably modern era of glamorous locomotives, cinema and dance halls but also a time of high unemployment and widespread poverty