John Ashton is an independent speaker and activist whose work spans politics, economics, diplomacy, and culture, with a particular focus on climate change. From 2006 to 2012, he served as Special Representative for Climate Change for three successive UK Foreign Secretaries. He was a co-founder and, from 2004 to 2006, the first Chief Executive of the think tank E3G. From 1978 to 2002, after a brief period as a research astronomer, he was a career diplomat. He holds visiting professorships at the London School of Economics and the London University School of Oriental and African Studies, and is a trustee of the UK Youth Climate Coalition as well as a member of the Advisory Board of Post Crash Economics.