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Argument158.
The Trash-Site Safety Council has recently conducted a statewide study of possible harmful effects of garbage sites on the health of people living near the sites. A total of five sites and 300 people were examined. The study revealed, on average, only a small statistical correlation between the proximity of homes to garbage sites and the incidence of unexplained rashes among people living in these homes. Furthermore, although it is true that people living near the largest trash sites had a slightly higher incidence of the rashes, there was otherwise no correlation between the size of the garbage sites and people's health. Therefore, the council is pleased to announce that the current system of garbage sites does not pose a significant health hazard. We see no need to restrict the size of such sites in our state or to place any restrictions on the number of homes built near the sites.
In this argument, the author claims that current system of garbage doesn't harm to residents’s health. In order to support his conclusion, the author cites a recent survey in favor of his claim, he also lists a myriad of assumptions to strengthen this argument. However, at first glance of this argument, it seems somewhat convincing, but further reflections reveals that it is a poor one, from my personal perspective, this argument suffers from three logical flaws.
First of all, the survey cited in the argument is too vague to be meaningful. unless the author sampled a sufficient number of the residents and ensure these people are representativeness, the argument is ungrounded. It is possible that these five sites in the survey are far from downtown, the circumstances around them and conditions of people are quiet different with other sites. three hundred investigator's responses can not persuade me either, the argument do not inform us how many people around each of the site, perhaps, the one in which conditions are less harmful indagated two hundred and ninety six residents, other cites which are more harmful indagated only four.
In addition, the author points that the rashes are unexplained, in this case, how does he conduces that there is a small statistical correlation? Ever assumption should rely on grounded reasons and accurate evidence, lack the information that rashes are conduced by other factors, the author can not conclude his claim hurriedly, perhaps, garbage is just the cause of rashes. The information "it is true that people living near the largest trash sites had a slightly higher incidence of rushes" should be the best evidence to support that garbage is the cause of rashes, if this is not the case, then how does these residents suffers higher incidents? The author does not tell us.
Finally, the author assumes too hastily that the size of the garbage cites has little relation with people's health Common science tells me that if a garbage cite will emit a harmful gas, then the bigger it will expand, the more harmful gas will be. moreover, even this one has contradiction with the information the author give above in the, if garbage cites has little relation with people's health the author infers in the argument above, then why does the author emphasize the size of the cites has little relation with people's health? this turn in the course of events in the argument brings a strong evidence that garbage is harmful to our body.
To sum up, the author fails to lend strong support to what he maintains, even if he cites a absurd survey, after he give some groundless reasons, this argument suffers from several logical flaws deeply. To make the argument more convincing, the author should provide more information about the survey. Additionally, he should indagate whether garbage cites is harmful. therefore, if the argument contains these given factors, it will be more acceptable
[ 本帖最后由 xomae 于 2008-7-24 19:50 编辑 ] |
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