Three years ago the Scottish singer songwriter KT Tunstall disappeared from the music scene. She tells us why she's returning to music and performs her latest single for us.How does air quality affect children's health? And what can parents do to help? We hear from Dr Ben Barratt a lecturer in Environmental research from King's College London, and Dr Abigail Whitehouse Clinical research fellow at Queen Mary's Blizard Institute.How one woman used craft to help her through two devastating events in her life. Listener Lisa Slinn is now a professional ceramicist; she says the creative process saved her life.The Australian novelist Julia Leigh discusses her memoir Avalanche documenting her fraught and failed journey through six rounds of IVF alone.The journalist and writer Reni Eddo-Lodge talks about her new book 'Why I'm no longer Talking to White People About Race'.Sally Rooney's first novel, Conversations with Friends is about a friendship between two young women and an older couple. Sally tells us how she feels about it being snapped up by the publishers who described it as 'Salinger for the Snap Chat Generation.'Two young women celebrate the crafts of knitting and embroidery. Hannah Hill is an embroiderer and calls her work art, and Louise Walker knits animal heads as part of her work as a taxidermy knitter.Presented by Emma BarnettProducer: Rabeka NurmahomedEditor: Jane ThurlowInterviewed guest: KT TunstsallInterviewed guest: Ben BarrattInterviewed guest: Abigail WhitehouseInterviewed guest: Lisa SlinnInterviewed guest: Julia LeighInterviewed guest: Reni Eddo-LodgeInterviewed guest: Sally RooneyInterviewed guest: Hannah HillInterviewed guest: Louise Walker.