We need new ideas to solve old problems. The world is full of amazing minds: how can we bring them together to solve these challenges and have some fun? Mat Roberts is Head of Sustainability at Landmarc Support Services.
HRH Princess Michael of Kent and SJ Parris
Horatio Clare talks to Stephanie Merritt
Simon Schama, Philippe Sands, Barbara Winton
Richard Wyn Jones and James Mitchell talk to Bethan Rhys Roberts