Comment on cp-2020-163 Anonymous Referee # 1 Referee comment on " Co-evolution of the terrestrial and aquatic ecosystem in the Holocene Baltic Sea

This is a well-written manuscript that presents analyses of biomarkers and stable isotopes of specific compounds. The analyses are state of the art and have not previously been used in the south-western Baltic. It is important to use new methods to improve our understanding of past environmental changes. However, the interpretations of the data are not straightforward and after reading the manuscript I did not feel that I learned much new about the history of the Baltic Sea. I am sorry but I don’t feel that the study “provided new insights into changes ... in the vegetation in the western Baltic region throughout the Holocene” (line 210).