Final Project sci27521212

Final Project sci27521212 - Human Population Constance Duff...

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Human Population Constance Duff SCI 275 February 7, 2010 Winston Erasme
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Human Population The world population in 2009 was over 6.8 billion, with an increase of 83 million from only last year in 2008. The world population will easily reach 7 billion in the second half of 2010 and the 2050 projection is around 9 billion. With population growth numbers like the ones reported, there will be a massive crisis for the environment and especially for the human race. All the major environmental issues that stand before us, for example; atmospheric pollution(global warming), water resources, terrestrial resources and energy conservation, are caused by humans. Humans are the negative energy that is killing the environment, so to fix our wrong-doings we have to get to the ‘root’ of the problem (Population reference Bureau, 2007). Problem There are four major parts that together contribute to our planets human population increase. These parts include; birth rate, death rate, immigration and emigration. As the birth rate and immigration rate continues to climb up, the death rate and emigration rate begin to decrease which leaves the population size increasing as well. As the world population increases, the chances of agricultural and food sources depleting, along with water and energy supplies coming to a screeching halt is very probable. Human-kinds impact When attempting to keep the world from hunger, food production contributes a large part to overpopulation. The human race can consume almost anything, in retrospect, and because of our ability to eat anything, the production to get whatever animal we like to our dinner plate, is a
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big cause to a lot of environmental issues. Global warming, air pollution and so on, is happening everyday by obliterating the land without replenishing the land in return. “The livestock sector generates more greenhouse gas emissions as measured in CO2 equivalent – 18 percent – than transport. It is also a major source of land and water degradation,” (Matthews, 2006, para.1). The production to get meat on our tables is not the only cause of major pollutions; produce is also a culprit in this fiasco. To transport produce to the stores we have to use some type of transportation. Airplanes, vehicles, and boats, the air uses the most fuel out of the three transportation options. The one major resource that the human population cannot go without is water. First of all our bodies are made up of more than 70% of water. Not to mention without water crops cannot grow, certain types of energy production would stop, and waste disposal would seice. Irrigation methods flood the lands by where only 40% of the water is absorbed by the plants, leaving the rest to evaporate. Also, this being a renewable source, it is already becoming almost impossible to meet the increasing demands given the future prospect that by 2025 many people will live in areas where there is not enough fresh water for drinking and irrigation (Berg & Hager, 2007). As much as humanity depends on water to survive, it depends on energy to function and
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This note was uploaded on 04/19/2010 for the course SCIENCE 275 taught by Professor Erasme during the Fall '09 term at University of Florida.

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Final Project sci27521212 - Human Population Constance Duff...

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