The decreasing of krill and how we prevent the problems
According to ‘Crucial resource at risk’ Doyle said that krill is smaller than any other species but they are the most plentiful species in the world. Krill living in Antarctica is on the bottom of the food chain and many predators depend on it. But the amount of krill seems to have decreased because of its usefulness. After humans found out about krill’s usefulness, people started to fish them more and more. Against this concern, the fishers claim that they are fishing krill in a sustainable way. Another problem is that an amount of krill is threatened by global warming. It is a big problem that we do not know clearly how global warming affects the amount of krill.
If the amount of krill decreased, many species at the top of food chain are threatened, and this threat is connected to the crisis of environment. We have to know clearly the reason krill has decreased in order to prevent it and protect it. First of all, we should make clear the reason krill has decreased.
The first reason krill has decreased is that humans are over-fishing it. Nowadays krill is using many parts of human life. We use it for food, pharmaceuticals, fish’s feed, colorants etc. After people found out that fish oil is good for health, people wanted more krill because krill is very good material for fish oil. And people made new nets and vessels that made the fishing easier. If we keep fishing krill more and more, eventually we will break down the food chain in the ocean and environment.
Another reason is global warming. We cannot exactly know how global warming affects krill and the food chain. But we can predict it through the strange phenomena that we see nowadays. For example, high temperature makes algae on the surface of the ocean; it blocks sunlight. Without sunlight, oxygen in the water decreases. Finally global warming makes krill unable to breathe and kills it.
We have to find how we can protect krill and species. We have to supervise krill fishing and limit the amount of krill that fishermen can fish in a year. And we must change our thought about global warming. Global warming is definitely more serious than we had thought. The first victim will be krill or any other species in the bottom of the food chain; eventually the last victim will be human. So, to protect krill is to save human nature and environment.
We have to remember that human being is on the top of the food chain. The species becoming extinct will be the human being. Therefore we have to keep an eye on the environment where we live and try to protect it.
Doyle, A. (2008, January). Crucial resource at risk. LexisNexis. Retrieved on May 27, 2008 from http://www.lexisnexis.com
Friday, May 30, 2008
Juhye Choi - EAP2(A) summary response essay #1
What we can do to prevent ice shelf eroding
In the article ‘Antarctica’s Wilkins ice eroding at an unforeseen pace’ Peter N. Spotts said that ice shelves in Antarctic are melting rapidly and the reason of melting reads into the global warming. Even though the melting is rapid, it is not that serious as yet. But if we leave the matter as it is, things will get worse. And there are two opinion of ice shelf melting. The one is that global warming causes the melting of ice shelf, and makes the sea level goes up. The other one is that the ice shelf is stable enough and the melting sometimes appeared in the past, but nothing happened. Therefore we have to figure out the reason of ice shelf melting, and it can help to predict the consequences of ice shelf melting.
The most important and immediate thing we have to do is to find the exact
reason of ice shelf eroding. Some of scientist claims that the ice shelf eroding is just a seasonal thing that we saw in the past times like the Roman era and Medieval Warm Period and it does not a big deal. But they are passing over something can cause the serious and miserable thing in the world. Even though ice shelf eroding can be seasonal thing, it is not an established view now. Therefore we have to make clear the reason of ice shelf eroding.
If something shows the same phenomenon, it can be caused by another reason. It is true that ice shelf eroding appeared in the past times, but now things are changed. Air pollution is serious, the temperature goes up and it becomes the reason of ice shelf eroding. It is the rapid change in the whole world and it is caused by human nature. Humans wanted to develop their society and industry at a short time, it leads the pollution. So, now we face the bad consequences of the rapid development.
Ice shelf eroding is one of the bad consequences that we caused, so we have to correct things before they get worse. First of all, we should figure out the reason of ice shelf eroding. We have to focus on the process that ice shelf eroding changed, and we have to find out the different factors that we could not find. We can find the reason of ice shelf eroding through we analyze the factors of ice shelf eroding. We can prevent the worst situation when we find out the exact reason.
The bad consequences that we made can be changed by us. If we start to fix it, it can be straitened immediately. Therefore we have to observe the change of ice shelves, analyze the factors, figure out the reason of ice shelf eroding and try to prevent the bad consequences of ice shelf eroding like rising of sea level. This will be the best thing that we have to do for our environment.
Peter N. Spotts (2007, April). Antarctica’s Wilkins ice shelf eroding at an unforeseen pace. The Christian Science Monitor. Retrieved on May 25, 2008 from http://www.csmonitor.com/2008/0328/p25s10-wogi.html
In the article ‘Antarctica’s Wilkins ice eroding at an unforeseen pace’ Peter N. Spotts said that ice shelves in Antarctic are melting rapidly and the reason of melting reads into the global warming. Even though the melting is rapid, it is not that serious as yet. But if we leave the matter as it is, things will get worse. And there are two opinion of ice shelf melting. The one is that global warming causes the melting of ice shelf, and makes the sea level goes up. The other one is that the ice shelf is stable enough and the melting sometimes appeared in the past, but nothing happened. Therefore we have to figure out the reason of ice shelf melting, and it can help to predict the consequences of ice shelf melting.
The most important and immediate thing we have to do is to find the exact
reason of ice shelf eroding. Some of scientist claims that the ice shelf eroding is just a seasonal thing that we saw in the past times like the Roman era and Medieval Warm Period and it does not a big deal. But they are passing over something can cause the serious and miserable thing in the world. Even though ice shelf eroding can be seasonal thing, it is not an established view now. Therefore we have to make clear the reason of ice shelf eroding.
If something shows the same phenomenon, it can be caused by another reason. It is true that ice shelf eroding appeared in the past times, but now things are changed. Air pollution is serious, the temperature goes up and it becomes the reason of ice shelf eroding. It is the rapid change in the whole world and it is caused by human nature. Humans wanted to develop their society and industry at a short time, it leads the pollution. So, now we face the bad consequences of the rapid development.
Ice shelf eroding is one of the bad consequences that we caused, so we have to correct things before they get worse. First of all, we should figure out the reason of ice shelf eroding. We have to focus on the process that ice shelf eroding changed, and we have to find out the different factors that we could not find. We can find the reason of ice shelf eroding through we analyze the factors of ice shelf eroding. We can prevent the worst situation when we find out the exact reason.
The bad consequences that we made can be changed by us. If we start to fix it, it can be straitened immediately. Therefore we have to observe the change of ice shelves, analyze the factors, figure out the reason of ice shelf eroding and try to prevent the bad consequences of ice shelf eroding like rising of sea level. This will be the best thing that we have to do for our environment.
Peter N. Spotts (2007, April). Antarctica’s Wilkins ice shelf eroding at an unforeseen pace. The Christian Science Monitor. Retrieved on May 25, 2008 from http://www.csmonitor.com/2008/0328/p25s10-wogi.html
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