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Argument 131
The following appeared in an environmental newsletter published in Tria Island.
"The marine sanctuary on Tria Island was established to protect certain marine mammals. Its regulations ban dumping and offshore oil drilling within 20 miles of Tria, but fishing is not banned. Currently many fish populations in Tria's waters are declining, a situation blamed on pollution. In contrast, the marine sanctuary on Omni Island has regulations that ban dumping, offshore oil drilling, and fishing within 10 miles of Omni and Omni reports no significant decline in its fish populations. Clearly, the decline in fish populations in Tria's waters is the result of overfishing, not pollution. Therefore, the best way to restore Tria's fish populations and to protect all of Tria's marine wildlife is to abandon our regulations and adopt those of Omni."
这是我的第一篇Argument, 用时大约70分钟,挺长的!字数606,写的不好,希望兄弟姐妹给出意见。小女子感激不尽。
The author claimed that the regulations about protecting marine mammals on Tria Island are not efficient, during analyzing and comparing with the conditions on Omni Island, he or she thought the main problem is that protectors on Tria have not adopted any measures to avoid over fishing. Then, the author suggested that the wisest way to abandon Tria’s present regulation is to choose methods what Omni has used. After careful examination of the suggestion and reasons the author proposed, however, I cannot assurance his or her proposal is credible.
First of all, no sufficient evidence is put out to make sure over fishing is the key point resulting in the decline in fish populations, not pollution or other reasons. Though the marine sanctuary on Tria Island have established regulations to ban dumping and offshore oil drilling, the article does not describe how did these regulations execute? One condition might be the regulations have not carried out well because of executive officer’s ignorance or developer’s unwilling to cooperate. Even the organization’s staffs do their best to prevent oil pollution; there might be other pollution sources, like effluent from factories or residents’ living districts. Besides pollution, some additional facts can affect fish populations, for example, water temporary, food or ocean currents. Anyhow, the author did not exclude other reasons which can explain the decline of fish number, so I will not make sure over fishing is a correct answer.
Secondly but most obvious logic flaw is that the author made a correlation between Tria and Omni, and consider the effective actions Omni has done would also be useful on Tria as long as Tria exchanging now regulations to Omni’s. The skeptical point is no information is given out to prove this is true. Maybe around Omni Island there is always a large fish population, and it is just a previous formed habit of fish. Maybe the geology and climate condition on Omni Island is more proper for fish to live and multiply. Or amounts of fish gather around Omni because they are attracted by fluent foods near Omni Island. But all of these have no relationship with regulations Omni adopted. That means any protect regulations cannot solve the lack of congenital conditions. Even assumed the environment in Omni and Tria is similar, there is no any guarantee about the intensity of rule’s execution. Omni’s marine sanctuary might have a strongly executable team so marine animals can be protected well all the time. In contrast, Tria’s team is so weak that they have no ability to prevent over fishing even if some new rules are enacted. In a word, the newsletter provides no credible evidence to persuade us Tria will restore fish populations more efficiently when adopting Omni’s methods.
Thirdly, the marine sanctuary’s responsibility is to protect certain marine mammals as the newsletter explained. I am puzzled that does fish belong to marine mammals? According to common sense, many people do not think fish is a kind of marine mammals. Based on this notion, the regulations established for protecting marine mammals would not be fit fish protection. Then all suggestions this article proposed would have no help to recover fish populations.
To sum up, the argument is logically unsound. To better evaluate author’s suggestion, the newsletter must provide sufficient and believable evidence to demonstrate over fishing is the most important reason to explain the decline in fish population, not pollution or other possible facts. And the author should compare carefully between Omni and Tria’s nature conditions and concheck their differences on regulations’ execution. In addition, it is important to prove that protection measures design for marine mammals are efficient to fish as well.
[ 本帖最后由 dairuxin512 于 2007-10-24 10:38 编辑 ] |
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