Lily Cole on sustainable fashion, lab grown diamonds and staying optimistic about fighting climate change

Should we be more optimistic about fighting climate change? In this episode of Clear The Air, Sadiq Khan is joined by the author, model and environmental activist, Lily Cole. Lily tells London’s Mayor why there are plenty of reasons to be hopeful about the future of our planet. She speaks about her career, why she’s passionate about sustainable fashion and reveals which MP she goes to for advice.