Our national parks - Great for people, not for nature?

On this week's ClimateCast, Tom Heap goes wild camping on Dartmoor and discovers why people think it’s so devoid of wildlife. Dubbed 'the place nature goes to die' Dartmoor has been criticised for overgrazing and not enhancing nature.So what is the solution to protecting nature while still enjoying our national parks? With a tent on his back, Tom Heap speaks to the chief executive of Dartmoor Park, a local farmer and environmental campaigner about how we strike the balance.Podcast producer: Emma Rae WoodhouseClimate producer: Gemma WatsonEditor: Paul Stanworth