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
Subject of labor production process (Marx, 1967, p 174), along with "human labor", and the "means of labor" (tools and infrastructure used to transform the subject of labor). The "subject of labor" and the "means of labor" comprise the means of production of society (Institute of Economics, 1957). "Subject of labor" is sometimes called "object of labor" (e.g., Sheptulin, 1978). In both cases, the term refers to what is being worked on. Institute of Economics of the Academy of Sciences of the U.S.S.R. (1957). Political Economy: A Textbook. London: Lawrence and Wishart. Marx, Karl (1867 | 1967). "Capital" Vol. I. New York: International