欢迎拍文作文小组argument 45

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TOPIC: 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."
WORDS: 366
TIME: 00:30:00

DATE: 2010-7-11 20:37:34

The arguer asserts that according to the reports from the hunters in Canada's arctic region, the Arctic deer population is declining, also he claims that it is the result of the recent global warming trends. To support his contention, he provides several evidences and facts. However, careful examination of this supporting evidence reveals that it lends little credible support to the applicant's claim.
Firstly, Arctic deer, though search for food by moving over ice from island to island,
don't require the ice for the whole year around. In fact, merely some of the year is long enough for these animals to travel over the separating islands. We know that temperatures vary in different seasons. Even lacking the exact data, we may still learn that the Arctic deer must travel in winter, yet not sure about that in summer. What we do know is that the deer still survive in summer. So the contention that global warming trends caused the sea ice to melt thus leading to the decline of Arctic deer's population is unsubstantial because Arctic deer can
even live through summer when no ice for them to travel, how can we convince ourselves that the melting sea cause them to starve?
Additionally, the Arctic deer live in areas warm enough to sustain the plants on which they feed. How can the author rule out the possibility that the global warming trends are making the plants more prosperous so that the deer population may boom given enough food?
Finally, the reports from the hunters can be subjective due to the lack of specific data. The arguer fails to eliminate several alternative explanations, which may include that the recent hunters are weak in their hunting skills; or the Arctic deer are more agile and cunning when confronting hunters; or merely the hunters go to the wrong place where the Arctic deer do not appear at all. He can not convince me without ruling out these possibilities.
To conclude, to better support his claim, the arguer needs to provide data that the Arctic deer is decreasing in number; moreover, he needs to points out to what degree the melting ice is stunning the Arctic deer’s way of travel.