Making TV science documentaries: 'It's all about storytelling' – video

As he shoots a Horizon documentary for the BBC about the obesity epidemic, The Truth About Fat , Tim Usborne explains the importance of working hard to find a narrative rather than simply presenting a series of dry facts. Now is perhaps the best time ever to get into science communication, says Usborne, with extraordinary developments under way in our scientific knowledge of the world around us. Enter this year's Wellcome Trust Science Writing Prize in association with the Guardian and the Observer