This page will be updated as speakers are confirmed
Andy Atkins, executive director, Friends of the Earth
Charles Anglin, director of communications, BWEA
Yvo de Boer, executive secretary, UNFCCC
Edward Butt, VP sustainability, Reckitt Benckiser
Jo Confino, head of sustainable development and executive editor, Guardian News and Media
Fiona Dawson, chief executive, Mars UK
Jane Dennett-Thorpe, head of carbon reduction commitment, Department of Energy and Climate Change
Esra Erkal-Paler, director of communications and marketing, Advertising Standards Agency
Jo Fox, deputy director, the Bigger Picture, BSkyB
Dr Paul Golby, chief executive, Eon UK
Zac Goldsmith, parliamentary candidate, Richmond Park and North Kingston and director, The Ecologist
Simon Hughes, Liberal Democrat shadow secretary of state for energy and climate change
David Kennedy, chief executive, Committee on Climate Change
Bruce Learner, corporate responsibility manager, Kellogg's Europe
Gavin Neath, chairman, Unilever UK
Frances O'Grady, deputy general secretary, TUC
Ian Pearson MP, economic and business minister, Department for Business Enterprise and Regulatory Reform
Stephen Reeson, energy manager, Food and Drink Federation
Simon Retallack, associate director and head of the climate change team, Institute for Public Policy Research
Nick Robins, head of climate change centre, HSBC
Lena Staafgard, principal advisor, Forum for the Future
John Temple, sustainability director, Unilever
Frances Way, head of supply chain, Carbon Disclosure Project
Bryony Worthington, director, Sandbag
Martin Wright, editor in chief, Green Futures
Donna Young, head of climate change, BT
Richard Youngman, managing director, Europe, Cleantech Group
Dimitri Zenghelis, chief economist, Cisco, co-author, Stern Review
