Coastline changes are the result of the interaction between geosystems and climate. Vertical isostatic movement of Earth's crust competes with the eustatic sea-level variation controlled by changing climatic conditions. The resulting relative sea-level variation has a vital impact on the anthroposphere along the sea coast. This interrelation can be studied in an exceptional manner on the southern Baltic Sea. Here, isostasy and eustasy have shaped the picture of the coastal areas since the last glaciation. The northern Scandinavian part has been uplifting constantly since the last deglaciation, causing a regression of the sea. In contrast, in the south, the Littorina...