Tannis Seccombe-Hett is an environmental economist specialising in monetary valuation and project appraisal. She has worked for the European Commission, the European Environment Agency, the UK Department of the Environment, Transport and the Regions, the UK Environment Agency, the Canadian Council for Ministries of the Environment, the UK Round Table on Sustainable Development, the Charities Aid Foundation, the China Council, the Machu Picchu Programme in Peru and several private companies. She has a BA (Hons) in Economics from the University of Cambridge and an MA degree in Economics from the University of Chicago.