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Thursday, January 27, 2011

Human Population and its effect on the earth.

The Current population of the world is six point five billion people. At the rate China is going, that number could easily increase to ten point five billion people. Ten point five people is a lot of people, and a lot of people means there are multiple ways the earth could be effected. Starting with the decrease of water supply and land to grow food to feed the six point five billion people. We also can have a greater chance of catching a deadly disease, because of how quickly it could spread, and all the pollution they would cause. These examples greatly affect our environment, and eventually the population.

The human body obviously needs water to function along with food and other things. In India the population is growing over nine hundred and seventy-four million people today, following close behind china. The problem with this relating to the environment is the depletion of water supply. The water tables are showing that they are falling by one up to five meters annually over the country of India. The way the earth if effected is that if people do not have water to survive, they will eventually die. Or there will not be enough water to water and help grow the food they need to eat to survive. This would put a big tole on the death and growth rates.

in 2002 the population in China was one point twenty-eight billion people. Which is over three times more than the United State's population. Although our land space is a little larger than theirs. They have more people and less land to put all their people on, while the Untied States has room to spare. This for India and China, means less room to grow their crops, then it makes it hard to feed all the people. More than half of the kids in India are already having trouble getting food supply, and are highly malnourished. If the kids do not get fed they turn very skinny and look sickly, and will die. The decrease of room to grow food could also become a threat to Nigeria, Ethiopia, and Pakistan.

Since China has such a large population, this greatly increases the amount of trash fr our earth. China has very bad pollution problems. Studies show that acid rain has been falling over about one third of the country. Over half of their was so polluted by trash, its simply useless. Almost a fifth of the trash that people are throwing away is treated in a sustainable way. All in all China's as ways over time has worsened and caused great damage on our planet.

The way all this ties into affecting the earth is very clear. The water depletion cuts off sources of way for things to grow, and for humans to eat. If we don't have room for crop land we can't grow food to eat. And of coarse, all the trash that is not being taken care of is polluting the earth, the air we breath and the water we could be drinking. Ether of two things could happen, the population could go down from people dying because of the resources being depleted, or people start realising whats going on, and try to become more sustainable, and save our earth.

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