Limnology global inland waters as part of the Earth System created a sub-discipline called global limnology. This approach considers the role of inland aquatic ecosystems in carbon cycling. Limnology is closely related to aquatic ecology and hydrobiology, which study aquatic organisms and their interactions with the abiotic (non-living) environment. While limnology has substantial overlap with freshwater-focused disciplines (e.g., freshwater biology), it also includes the study of inland salt lakes. The term limnology was coined by François-Alphonse Forel (1841–1912) who established the field with his studies of Lake Geneva. Interest in the discipline rapidly expanded, and in 1922 August Thienemann (a German
The Study of the Negro Problems The Study of the Negro Problems The Study of the Negro Problems, from "The Annals of the American Academy of Political and Social Science" (January 1898), is an essay written by professor, sociologist, historian and activist W. E. B. Du Bois. It both challenges the question he poses in his "The Souls of Black Folk" (1903) of “How does it feel to be a problem?” and is reminiscent of the popular mindset of whites toward people of color at the time. As a reoccurring theme amid Du Bois’ works, the Negro as a problem to those representing the majority population