...1960’s, the Great Lakes have been negatively affected by the excess amounts of phosphorus and nutrients that have been drained into the water, causing algae bloom populations to increase. These nutrients have runoff into the Great Lake’s clean water source through agricultural human influences. Since the cause has affected major biolife, the government has stepped in to, and has enacted preventatives to stop nutrients from consuming the Great Lakes, which in turn negatively affects life, on and off land. For example, in 1973, Michigan revised the Water Quality Standards, which included requirements for controlled discharge. (Source 1). While the trophic state of each lake has remained the same, there has been a...
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...Water Contamination: Problem, Solution, and Barriers Paper Problem Concerns about water pollution are generally focused towards sources that are highly visible and chemically oriented. However, the greatest causes of water contamination and quantity abuse in the United States come from agricultural production (United States Environmental Protection Agency [EPA], 2012a), which is defined as a nonpoint source that pollutes with nutrients. In 2011, nine of the top ten corn and soybean producing states were located in the 2 Midwest (United States Census Bureau, 2012), making this region the largest agricultural region by volume produced in the U.S., and thus prone to environmental problems with alarming consequences. In order to meet production demands while bound by constrained budgets, farmers often turn to unsustainable practices to ensure a yield. These include irrigating their fields with groundwater (the water from natural basins underneath the ground), applying excessive amounts of nitrogen and phosphorus as fertilizer, and plowing the land in a way that reduces quality of soil structure (United States EPA, 2012b). All of these factors directly result in the rapid depletion of water resources in the Midwest, and the toxic nutrient pollution of surface waters such as lakes, rivers, and streams (United States EPA, 2012c). Entire freshwater ecosystems are being literally suffocated by nutrients, such as Phosphorus, which support the growth of toxin emitting harmful cyanobacteria...
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...Content Water they say is life, and indeed they were right. With about 70% of the earth’s cover being water; it undeniably becomes one of our greatest resources. Water resources are used in various ways including direct consumption, agricultural irrigation, fisheries, hydropower, industrial production, recreation, navigation, environmental protection, the disposal and treatment of sewage, and industrial effluents. Water has sources and supplies, economic, social, and political characteristics which make it a unique and challenging natural resource to manage. Water resources refer to the supply of groundwater and surface water in a given area. Water resources may also reference the current or potential value of the resource to the community and the environment. The maximum rate that water is potentially available for human use and management is often considered the best measure of the total water resources of a given region. With two thirds of the earth's surface covered by water and the human body consisting of 75 percent of it, it is evidently clear that water is one of the prime elements responsible for life on earth. Water circulates through the land just as it does through the human body, transporting, dissolving, replenishing nutrients and organic matter, while carrying away waste material. Further in the body, it regulates the activities of fluids, tissues, cells, lymph, blood and glandular secretions. An average adult body contains 42 litres of water and with just...
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...Ecosystems SUMMARY Fresh water is vital to human life and economic well-being, and societies extract vast quantities of water from rivers, lakes, wetlands, and underground aquifers to supply the requirements of cities, farms, and industries. Our need for fresh water has long caused us to overlook equally vital benefits of water that remains in stream to sustain healthy aquatic ecosystems. There is growing recognition, however, that functionally intact and biologically complex freshwater ecosystems provide many economically valuable commodities and services to society. These services include flood control, transportation, recreation, purification of human and industrial wastes, habitat for plants and animals, and production of fish and other foods and marketable goods. Over the long term, intact ecosystems are more likely to retain the adaptive capacity to sustain production of these goods and services in the face of future environmental disruptions such as climate change. These ecosystem benefits are costly and often impossible to replace when aquatic systems are degraded. For this reason, deliberations about water allocation should always include provisions for maintaining the integrity of freshwater ecosystems. Scientific evidence indicates that aquatic ecosystems can be protected or restored by recognizing the following: • Rivers, lakes, wetlands, and their connecting ground waters are literally the “sinks” into which landscapes drain. Far from being isolated bodies or conduits...
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...62118 0/nm 1/n1 2/nm 3/nm 4/nm 5/nm 6/nm 7/nm 8/nm 9/nm 1990s 0th/pt 1st/p 1th/tc 2nd/p 2th/tc 3rd/p 3th/tc 4th/pt 5th/pt 6th/pt 7th/pt 8th/pt 9th/pt 0s/pt a A AA AAA Aachen/M aardvark/SM Aaren/M Aarhus/M Aarika/M Aaron/M AB aback abacus/SM abaft Abagael/M Abagail/M abalone/SM abandoner/M abandon/LGDRS abandonment/SM abase/LGDSR abasement/S abaser/M abashed/UY abashment/MS abash/SDLG abate/DSRLG abated/U abatement/MS abater/M abattoir/SM Abba/M Abbe/M abbé/S abbess/SM Abbey/M abbey/MS Abbie/M Abbi/M Abbot/M abbot/MS Abbott/M abbr abbrev abbreviated/UA abbreviates/A abbreviate/XDSNG abbreviating/A abbreviation/M Abbye/M Abby/M ABC/M Abdel/M abdicate/NGDSX abdication/M abdomen/SM abdominal/YS abduct/DGS abduction/SM abductor/SM Abdul/M ab/DY abeam Abelard/M Abel/M Abelson/M Abe/M Aberdeen/M Abernathy/M aberrant/YS aberrational aberration/SM abet/S abetted abetting abettor/SM Abeu/M abeyance/MS abeyant Abey/M abhorred abhorrence/MS abhorrent/Y abhorrer/M abhorring abhor/S abidance/MS abide/JGSR abider/M abiding/Y Abidjan/M Abie/M Abigael/M Abigail/M Abigale/M Abilene/M ability/IMES abjection/MS abjectness/SM abject/SGPDY abjuration/SM abjuratory abjurer/M abjure/ZGSRD ablate/VGNSDX ablation/M ablative/SY ablaze abler/E ables/E ablest able/U abloom ablution/MS Ab/M ABM/S abnegate/NGSDX abnegation/M Abner/M abnormality/SM abnormal/SY aboard ...
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