Zena Holloway is a bio-designer and founder of Rootfull, which creates exquisite clothes, lights and sculptures from grass roots. She started her career as an underwater photographer, doing extraordinary high-end fashion shoots, as well as working with the likes of Kylie Minogue, Tom Daley, Katie Price and numerous other celebrities. At the same time, she was capturing the effects of pollution on the UK’s river beds. So how and why did her career shift so dramatically?In this episod...