【☆09GRE作文冲刺组】圣斗士2月25日作文Argument45

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ARGUMENT45 - The following appeared as an editorial in a wildlife journal.

"Arctic deer live on islands in Canada's arctic region. They search for food by moving over ice from island to island during the course of a year. Their habitat is limited to areas warm enough to sustain the plants on which they feed, and cold enough, at least some of the year, for the ice to cover the sea separating the islands, allowing the deer to travel over it. Unfortunately, according to reports from local hunters, the deer populations are declining. Since these reports coincide with recent global warming trends that have caused the sea ice to melt, we can conclude that the decline in arctic deer populations is the result of deer being unable to follow their age-old migration patterns across the frozen sea."
字数：455
用时：00:28:41
日期：2009-2-25 10:59:35

In this wildlife journal, the author concludes that the decline in arctic deer populations is due to the recent global warming trends that disturb their age-old migration across the frozen sea. To strengthen this argument, the arguer points out the fact of global warming and the habitat of arctic deer. However, this argument is unconvincing as it stands for several places.

First of all, this argument rest on the hasty assumption that the global warming trends in the world will influence the deer's living area. Although it is true that the global warming trend affect many places in the world, it does not mean that the whole area in arctic, especially where deer live, is under the influence of global warming. Without certain evidence, the author cannot convince us that the sea ice located in deer's living area is melted.

Even though the global warming trends have caused the sea ice where the deer is living to melt, it is not necessarily means that this trend directly leads to deer's death. The author says that the habitat should be warm enough to sustain the plants on which they feed, which also means that the increase of temperature will has positive influence on the plants' growing. So it is entirely possible that since the deer now has enough food to eat thanks to the global warming trend, the deer does not need to travel over sea for seeking more food. If so, then the arguer's conclusion is doubted.

Last but not least, even though the global warming has some influence to the habitat of deer living in arctic, nonetheless, the arguer may ignores other factors which may actually be the main reasons due to the declines in arctic deer population. For example, may it is a kind of disease in their living place make them die; or perhaps it is the environmental contamination that negatively affects the growth of plants in local area where deer is living. In addition, we also need to take the human’s preying into account, therefore, each of these situation will leads to the decline in arctic deer population. Without ruling out these possibilities, the arguer cannot convince us with the conclusion that the decline of population is merely due to the global warming trend.

To sum up, this argument has a serial of fallacies. To bolster it, the author must provide enough information showing the global warming trend exactly negatively influence the island where deer is living. Additionally, the arguer needs to do more investigation about the deer's habitat, so that could make the conclusion more reliable. Also, to better understand this argument, I need to know whether there are other factors that may cause the decline of deer's population.