Stella Hall is an agent of social and artistic change. She founded Newcastle's Juice, EAT and Enchanted Parks festivals, runs Darlington's Festival of Thrift and led the long-running (since 1193!) Preston Guild in 2012, Barclay's New Stages at the Royal Court and the Belfast Festival at Queens. Following Stella's provocation we'll open up discussion of festivals role in achieving social change, focusing on environmental sustainability. Book early: last years event sold out. www.creativecarbonscotland.com