· Professor, Climate and Resource Security, University College London2021–
· Associate Fellow, Chatham House2018–
· Vice Dean (Public Policy), Faculty Engineering Sciences, University College London2016–
· Non Executive Director, Jenner Renewables2014–2017
· Non Executive Director, Tower Bridge Ventures2014–2016
· Strategy Adviser/Honorary Professor, University College London2014–2021
· Interim Foreign Secretary's Special Representative for Climate Change, Foreign and Commonwealth Office2013–2013
· UK Government Climate and Energy Security Envoy (Rear Admiral), UK Government2009–2012
· Commandant, Joint Services Command and Staff College (Rear Admiral), UK Ministry of Defence2007–2009
· Commander UK Maritime Forces (Rear Admiral), Royal Navy2005–2007
· Graduate, University of East Anglia