Experience and Evidence Rough

Experience and Evidence Rough - Elise Kim ENGL 101 10/26/10...

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Elise Kim ENGL 101 10/26/10 Fritz Animal Wastes and its Consequences The high demand for meat, milk, and eggs in the United States has increased over the past century causing the livestock industry to evolve, forcing the production of animals to become more efficient. Because of the increase in knowledge and the improvements in technology, the poultry, swine, and cattle industries have industrialized significantly. As a result, we discovered many different techniques to produce a lot of good quality animal products in a cheap manner; this phenomenon is known as a concentrated animal feeding operation (CAFO). However, the question is brought up when it comes to the disposal of animal wastes. I’ve seen farms while I went on road trips with my family, and they seemed very clean. But because of my passion and curiosity for animals and the environment, I always wondered, where does the manure go and how do farmers dispose them? Waste disposal managements, such as pumping manure into lagoons for later use, are used, even though they are environmentally unfriendly. Although our demands for dairy and meat are satisfied, the protection of the environment is crucial and therefore, there is a need for strong regulations of disposing animal excrement for the better of the environment, people and animals. Animal waste is one of today’s major water pollutants. According to Environmental Protection Agency (EPA), 40% of US waters are polluted and are not “swimmable” for fish
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(Cooper 653); the main reason is because of runoff. After storing the manure in the lagoons, farmers make fertilizer out of it and spray it on their crop fields. The fertilizer is full of phosphorus and nitrogen, and when farmers use too much of it, the nutrients seep through the soil and end up in bodies of water (Cooper 966). The addition of nutrients into streams and rivers, “ [lowers] dissolved oxygen in [water] to levels that cannot support most animal life” (Osterberg and Willinga 1704). One of the worst examples is the Gulf of Mexico because it undergoes this process every summer (Osterberg and Willinga 1704) . Since runoff can travel long distances, livestock waste “[empty] into the Gulf of Mexico, [causing] a lifeless “dead zone” that spreads over an area that at times equals the state of New Jersey” (Cooper 955). Therefore, it is difficult to control runoff, and consequently is tough to create a strong policy. Michael Hirshfield, a senior vice president of Chesapeake
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This note was uploaded on 02/28/2012 for the course ENG Eng101 taught by Professor Fritz during the Spring '11 term at Maryland.

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Experience and Evidence Rough - Elise Kim ENGL 101 10/26/10...

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