INFlUINS is a major research project examining the movement of fluids (and associated gases) below ground. It focuses on the region between the uppermost soil horizon down to groundwater at depths of several kilometres. The use of the phrase "integrated fluid dynamics" in the name of the project underlines our interest in the relationship between near surface and deeper fluid and material flows. About 50 scientists from the university of Jena and partner institutions work together from fields spanning geology, hydrogeology, geophysics, mineralogy/geochemistry and climatology (Partners). INFLUINS is financially supported by the Federal Ministry for Education and Research (BMBF) and the Ministry of Culture of the state of Thuringen. The giant "open air Geolaboratory" in which we carry out our research is the Thuringian Basin.