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生物工程留学生课程作业:Global Warming

时间:2015-09-01 10:24来源 作者:英国论文网 点击联系客服: 客服:Damien
生物工程留学生课程作业:Global Warming

  The air quality of our atmosphere has been in drastic changes in the past century. Industrial revolution has cause major harm to our environment. Pollution, dumping toxic wastes into our ocean, and releasing harmful gases and sprays into the atmosphere. These are some of the cause of global warming so dangerous in the world's environment. We should take more action towards global warming before it's too late.What is Global warming? Global warming refers to an average increase in the Earth's temperature, which in turn causes changes in climate (Global). Population growth, deforestation, and pollution have increased by a large margin from twenty, forty, or even a hundred years ago. Since the Industrial Revolution, machines have changed the way life we lived. Before the Industrial Revolution, human activity released very few gases into the atmosphere, but now through population growth, fossil fuel burning, and deforestation, we are affecting the mixture of gases in the atmosphere (Global). It is imperative that we, the people, take action on our dying environment, for the future of our kids and generations to come. Unless steps are taken to stop this progression of events, and even in spite of such steps, the vast majority of the evidence shows that the Earth will continue to grow warmer, with widespread and even catastrophic results.
  How did we find out what was the cause of global warming? After doing some research, I learned that global warming is created by the greenhouse effect:
  The greenhouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere (water vapor, carbon dioxide, nitrous oxide, and methane, for example) trap energy from the sun. Without these gases, heat would escape back into space and Earth's average temperature would be about 60 F colder. Because of how they warm our world, these gases are referred to as greenhouse gases (Global).
  Do you know what a greenhouse is? Have you ever seen houses with a small glass house in the backyard just for plants? Well these glass houses also known as a greenhouse. They are meant for plants to survive through the winter time by trapping heat within the house. Since, Earth's atmosphere is very much like the greenhouse model, energy from the sun passes through our atmosphere where energy is absorbed by the air, water, and plants. Once absorbed, the energy then releases itself back into the atmosphere and then releases into space. Without the greenhouse effect, our climate could be disastrous because the atmosphere regulates our climate. It could raise or lower the temperatures, misbalancing nature. Even though the greenhouse effect is good for the environment, it could also be bad. Since the atmosphere is filled with pollution, the energy re-releasing back into space sometimes gets trapped by the atmosphere and warms up the Earth's climate.
  Pollution is one of the largest problems in today's environment. By emitting harmful gases such as carbon dioxide which are mainly released from cars and power plants, harmful gases will build up into the atmosphere. The harmful effects of gas build up in the atmosphere and can increase the temperature of the Earth which could endanger plants, cause wild weather patterns, or alter land formations (Global). There are many ways to increase the effects of global warming such as contamination, wastes, or deforestation.(责任编辑:cari)

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