RanasMosler is a spin-off of Eawag, the Swiss Federal Institute of Aquatic Science and Technology. Hans Mosler founded RanasMosler to advise national and international organizations in the development sector on behavior change. The unique feature of this advice is that it is based on theories of health and environmental psychology and has been corroborated in more than 70 scientific publications.

About us

The RANAS approach uses psychological knowledge and methods to deliver a profound understanding of behavior change.


is a spin-off of Eawag

Hans Mosler is an Associate Professor in Environmental and Social Psychology at the University of Zurich, Switzerland and works for Eawag as head of the Environmental and Health Psychology Group (see CV).