Steen Solvang Jensen’s research and development focus on integrated modelling systems for air pollution, human exposures, health impacts and related social costs with applications within air pollution epidemiology and decision-support within urban air quality assessment and management with focus on policy options within transport and wood stoves. The research also focus on climate mitigation emphasising the relation between environment and renewable energy sources (solar, bioenergy) and alternative fuels for the transport sector (hydrogen, biofuels, biogas, electricity). During the last 25 years he has led and participated in a large number of research and advisory projects of which many are interdisciplinary combining natural and social sciences.