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Water pollution is the contamination of natural water bodies by chemical, physical, radioactive or pathogenic microbial substances. [2] Point sources of water pollution are described by the CWA as "any discernible, confined, and discrete conveyance from which pollutants are or may be discharged."
A list of environmental philosophers, ordered alphabetically, which includes living or recently deceased individuals who have published in the field of environmental ethics/philosophy (most of whom have PhDs in Philosophy, and are employed as philosophy professors), and those who are commonly regarded as precursors to the field.
Nutrient pollution caused by Surface runoff of soil and fertilizer during a rain storm Nutrient pollution, a form of water pollution, refers to contamination by excessive inputs of nutrients. It is a primary cause of eutrophication of surface waters (lakes, rivers and coastal waters ), in which excess nutrients, usually nitrogen or phosphorus ...
The commercialization of water is offered as a response to the increased scarcity of water that has resulted due to the world population tripling while the demand for water has increased six-fold. Market environmentalism uses the markets as a solution to environmental problems such as environmental degradation and an inefficient use of resources.
Topsoil runoff from farm, central Iowa (2011). Water pollution in the United States is a growing problem that became critical in the 19th century with the development of mechanized agriculture, mining, and manufacturing industries—although laws and regulations introduced in the late 20th century have improved water quality in many water bodies. [1]
Thomas Banchoff of Georgetown University in the USA noted in an article in The Tablet in September 2023 that, since the 1891 publication of Leo XIII's Rerum Novarum, "Catholic Social Teaching has been organised around core principles including human dignity, the common good, subsidiarity and the universal destination of goods".
Green water is rainwater that was precipitated on soil that can be used naturally for plants and agriculture. [12] [11] Gray water is water that has been contaminated by human use or proximity. The gray water classification can range from freshwater fertilizer runoff pollution [13] to water contaminated from dishwashers and showers. [14]
Water quality protection also falls under the umbrella of water resource policy; laws protecting the chemistry, biology, and ecology of aquatic systems by reducing and eliminating pollution, regulating its usage, and improving the quality are considered water resource policy. [14]