Paleolimnology (Greek: paleon=ol, limne=lake, logos=study) is a scientific subdiscipline closely related to both limnology and paleoecology. Palaeolimnological studies are concerned with reconstructing the paleoenvironments of inland waters (lakes and streams; freshwater, brackish, or saline) – and especially changes associated with such events as climatic change, human impacts (e.g., eutrophication, or acidification), and internal ontogenic processes.