After graduating, Nuttall held positions as a stock, bond and commodity broker in the UK and the United States, having begun his working life as a singer with the US pop group The Albany Bridge Band.
[2] During his time at UNEP, Nuttall was responsible for transforming the organization's media profile and, in collaboration with its Executive Director, inspiring several landmark reports including the 2009 Climate Change Science Compendium; the Natural Fix The Role of Ecosystems in Climate Mitigation and the Dead Planet, Living Planet: Biodiversity and Ecosystem Restoration for Sustainable Development.
He was responsible for supporting the press and communications of Executive Secretaries Christiana Figueres and Patricia Espinosa and across the Framework Convention’s operations.
Here he coordinated the communications efforts of businesses, cities, regional governments and citizens across a bold range of announcements aimed at Taking Climate Ambition to the Next Level by 2020.
Nuttall participated in the New American Road Trip which left San Francisco after the Summit and took the outcomes of GCAS in an electric car journey across the United States to the UN in New York in September 2019.