The course focuses on the impacts of the geotechnical structures on the natural environment. The possibilities of their prediction and the reduction of human impacts on the environment are analyzed. Students will extend their knowledge both in the field of geohazard origin (slope deformations, floods etc.), and anthropogenous impacts of structures (changes in hydrogeological conditions resulted from geotechnical structures, landfilling of wastes etc.). Part of the subject is also the environmental impacts of mining and underground structures, in particular with regard to the abandonment of mines (flooding of mines, stability of shafts, subsidence basins, redevelopment of mine tailings and ponds, etc.), tunneling impacts (e.g. change in hydrogeological conditions). The course also includes the problems of soil and water contamination and their remediation. Summarizing of preventive and reparative measures in relation to geotechnical structures and geohazards is prioritized within the course.