Andrea Leadsom, James Harding, Lisa Nandy & George Monbiot

Andrea Leadsom - Former Business Secretary, former Environment Secretary, former Leader of the House of Commons and Conservative MP for South Northamptonshire | James Harding - Editor and Co-founder of Tortoise, former Director of BBC News | Lisa Nandy - Shadow Foreign Secretary and Labour MP for Wigan | George Monbiot - Columnist for The Guardian and environmental campaigner