1. “ The Baltic Sea ecosystem – threats and challenges ” Al’ona Shulika Kyiv Taras Shevchenko National University Department of Hydrology and Hydroecology

2. Countries that border on the sea: Denmark Estonia Finland Germany Latvia Lithuania Poland Russia Sweden

3. Geophysical data The Baltic Sea is a brackish inland sea, perhaps the largest body of brackish water in the world. The Baltic Sea occupies a basin formed by glacial erosion during the last few Ice Ages.

4. Fertilizer runoff from surrounding agricultural land has exacerbated the problem and led to increased eutrophication.