Without a worldwide agreed set of values is it possible for humans to confront, and deal with, the numerous threats that we and our planet face? Or will we continue our disagreements, rivalries and antipathies, even as we collectively approach what might be extinction?

Join philosopher and author A.C. Grayling  as he considers the three most pressing challenges facing the world: climate change, technology and justice and asks does a part of the answer lie in toleration and convivencia – the basis of coexistence among Muslims, Jews and Christians in the Iberian peninsula between the ninth and fifteenth centuries CE?

A. C. Grayling

A. C. Grayling CBE MA DPhil (Oxon) FRSA FRSL is the Founder and Principal ofNew College of the Humanities at Northeastern University, and its Professor ofPhilosophy. He is also a Supernumerary Fellow of St Anne’s College, Oxford.He is the author of over thirty books of philosophy, biography, history of ideas, and essays.He was for a number of years a columnist on the Guardian, the Times, and Prospect magazine. He has contributed to many leading newspapers in the UK, US andAustralia, and to BBC radios 4, 3 and the World Service, for which he did the annual ‘Exchanges at the Frontier’ series; and he has often appeared on television. He has twice been a judge on the Booker Prize, in 2014 serving as the Chair of the judging panel. He is a Fellow of the Royal Society of Arts, a Fellow of the Royal Society of Literature, a Vice President of Humanists UK, Patron of the Defence Humanists,Honorary Associate of the Secular Society, and a Patron of Dignity in Dying.