The G-ETS focus on Earth tides and non-tidal loading, such as atmospheric, oceanic and hydrological loading, Earth's variable rotation, geodetic monitoring of reservoirs and volcanoes. Accent is also put on geodetic monitoring of surface deformation and mass redistributions by space techniques (GNSS, GRACE and GRACE-FollowOn, InSAR) as well as to innovative techniques and instruments (for instance cold-atom gravimeters) and their applications to the Earth's dynamics.