450 REAL- assigment 3 gw

450 REAL- assigment 3 gw - Pratt 1 February 7, 2011 Legal...

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February 7, 2011 Legal 450 Over the past decade, global warming and climate change became one of the most controversial, publicized and pressing issues facing the world today. Global warming is an increase in the Earth’s average temperature that is caused by the greenhouse effect. Before the industrial revolution the Earth’s climate naturally would change due to various factors including volcanic eruptions and the path of orbit around the sun. After the Industrial Revolution, however, many argue that humans are responsible for the majority of climate change. As a result of these actions the ozone has begun to deteriorate leading to a permanent change in the Earth’s climate. The dominant factors contributing to global warming are the burning of fossil fuels, such as oil and coal, and the deforestation of tropical forests (EPA). These gases prevent heat from leaving the Earth, therefore they become trapped in the Earth’s atmosphere creating the effect glass has on the sunlight in a greenhouse. This effect is known as the greenhouse effect, which Joseph Fourler named in 1824 . Over the past few decades, the amount of greenhouse gases has rapidly increased. In the past decade alone, yearly emissions have increased by more than twenty percent to about six billion metric tons of carbon dioxide worldwide (National Geographic). This increase is affecting the Earth in various ways. Figure 1: Image of melting ice cap on mountain
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450 REAL- assigment 3 gw - Pratt 1 February 7, 2011 Legal...

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