Ståle Navrud is a professor in environmental and resources economics (ERE). He is Dr. Scient. (Ph.D) in ERE from NLH (now NMBU), and has been a visiting researcher and Fulbright Scholar at University of California (UC) – Berkeley, UC- San Diego and University of New Mexico. He specializes in cost-benefit analysis and economic valuation of ecosystem services (terrestrial, aquatic and marine), biodiversity, recreational activities, landscape aesthetics, air/soil/water quality, cultural heritage, environmentally related health impacts (from air pollutants, chemicals and radionuclides) , externalities from transport (noise, air pollution, aestehics etc), externalities of renewable energy (hydro and wind) and electric transmission lines (landscape aesthetics, biodiversity and recreational impacts), and environmental impacts from climate change, extreme weather events, nuclear accidents and natural disasters. He has particpated in more than 20 EU-projects on these topics, and has also extensive experience in applying Stated Preference methods in Africa, Asia and South America. He was a review editor of the economics of adaptation in the Intergovernmental Panel on Climate Change (IPCC) 5th Asessment Report (AR5, 2014), and a member of the pool of experts for the UN Integovernmental Platform on Biodiversity and Ecosystem Services (IPBES) and the UN World Ocean Assessment I and II (on the socio-economics of Oceans). He was also an appointed expert to the international technical committees (TC) developing new ISO-standards in environmental management; 14007: “Determinig Environmental Costs and Benefits” and 14008: “Monetary valuation of environmental impacts”, and is currently a member of ISO/TC 323 “Circular Economy”.