AboutHumanity's problems are global, but there is no global polity, and governance remains local and national. Is the G8 an anachronism? Is the G20 a sufficiently inclusive alternative? Who or what determines whether a nation has a voice? And alongside activists, what role can non-governmental organisations, businesses and charities play?
Ian Bremmer, President of Eurasia Group
Trevor Manuel, South African Minister in the Presidency: National Planning Commission
David Miliband, President and CEO of the International Rescue Committee (from September 2013) and former UK Secretary of State for Foreign and Commonwealth Affairs
Martin Wolf, Chief Economics Commentator at the Financial Times