Mega Farms :: essays research papers

Mega Farms Effects On WaterWater pollution has been an increasing problem over the last few age. Pollution itself is when a substance or energy is introduced into the soil, air, or water in a concentrate. Pollution comes in many forms agricultural, urban runoff, industrial, sedimentary, animal wastes, and leeching from lendfills/septic systems just to name a few. These pollutants are very detrimental to the environment. Whether they are alone or combined with another form of pollution they are very harmful. Over the last hundred years the problems with pollution have been increasing with time. This is due to both the increase in human population, and the increases in technology we have made as a society. If we be after on having our resources here for many years to come we are going to have to make some drastic changes in the way we treat the earth, and these changes leave have to start with our pollutants. (Jones,1993,pp.4-15)Agricultural pollution is a very big contributor to water pollution. Problems we see with agriculture are applications of fertilizers, insecticides, and pesticides. We have made grand improvements in the types of chemicals we are using, as to how environmentally friendly they are. In 1985 the amount of fertilizer added to Americas fields was 11.5 million tons. Not only do these chemicals leech in to the soil, but they are also swept off the soils by rain and wind. When these fertilizers reach the water there is a sudden windfall in plant growth. When the plants die, bacteria that need oxygen to persist eat their bodies. This starts to deplete the amount of oxygen in the water for other fish and animals to live and breath, and they end up dying. Besides the chemical contamination on the farm there are major problems with animal wastes. (Jones,1993,pp.39-60)Over the last 30 or so years there has been an increased demand for food. Foods like pork, chicken, turkey, and beef. With the demand for meats, there is also an increased deman d for grains to feed these animals. So more land is needed to grow the feed, less space is available for the feedlots. More and more of these feedlots have been popping up over the landscape. And the amounts of animals crammed into the small spaces are also increasing. thither can be as few as 50 to as many as 7 million in a single confinement.