Barbier is a University Distinguished Professor whose main expertise is natural resource and development economics as well as the interface between economics and ecology.
He has served as a consultant and policy analyst for a variety of national, international and non-governmental agencies, including many UN organizations, the OECD and the World Bank. Barbier is on the editorial boards of several leading economics and natural science journals, and he appears in the 4th edition of Who’s Who in Economics.
In 2008, he was named by Cambridge University as one of the 50 most influential thinkers on sustainability in the world. Barbier has authored over 250 peer-reviewed journal articles and book chapters, written or edited 22 books, and published in popular journals and media.
Barbier was elected as a 2015 Fellow of the Association of Environmental and Resource Economists. His latest book is The Water Paradox: Overcoming the Global Crisis in Water Management (2019).