Geodetic techniques measure the situation on the Earth’s surface. Modern space techniques extend observations to satellites orbiting the planet Earth or even to extra-terrestrial targets. Today the position of particular sites on the Earth’s surface and its variation is known to the sub-millimetre level for the period of decades. These techniques are also sensitive for many occurrences within the system Earth, e.g. changes in the atmosphere, movement of tectonic plates and the state of solar radiation. The cross-linking of geodetic findings and knowledge from other geosciences is in the focus of research projects since long time. Geodesy contributes to better understand the system Earth. This session presents recent research projects of geosciences such as the European Plate Observing System (EPOS) and also updated results of ongoing projects. (Near) Real-time analysis of GNSS observations provides geophysical parameters in (near) real-time, e.g. information about the troposphere state. It contributes to online monitoring of the natural environment. Interdisciplinary cooperation for geo-monitoring and visualising in geo-information systems will also be addressed here.