Tuesday, October 30, 2007

Polar bears Summary response #2

In Terhune's (2007) article entitled "Polar Bears Face Serious Threat; But scientists say there is time to save them, and the polar ice caps," the author of the article mentions that polar bears are located in a critical situation of extinction, yet we have enough time to recover this situation. In the article, first, she says that Arctic sea ice where polar bears live is melting rapidly. Then, polar bears' extinction causes the changing of the ecosystem to worse. Also, she explains how polar bears' number is decreasing according to many investigations. Next, she refers to climate's changing. She thinks it makes polar bears extinct, because it affects polar bears' habitat. Then, she tells more examples which more examples of bad effects of global warming. According to this article, the author thinks we can save polar bears if we make countermeasures fast. As a result, she wants everyone to recognize this problem and the government should make a method to solve this problem.

Although this article is similar to my first essay's article, i could understand about polar bear easier, because this article has many good explanations about investigation. I think that polar bears are in a dangerous situation because of ice melting. Then, ice melting is caused by climate changing. Actually, the climate is related to global warming. Finally, we aren't too late to protect the polar bear yet, and prevent global warming, because it causes polar bears' extinction. Therefore, we have to make this problem better by reducing greenhouse gases, resulting human activity, and continuing investigation

First, the government has to make a law to reduce greenhouse gases because greenhouse gases are dangerous to polar bears. If government doesn't make any laws to prevent emissions of greenhouse gases, nobody is going to take any action. Greenhouse gas is very critical for polar bears because it makes temperature go up rapidly. Then, this climate makes the Arctic sea ice melt, and polar bears lose their habitat. Greenhouse gas has been a serious problem for a long time, many countries have tried to reduce it, but actually we haven't found any good results. For instance, many presidents have gathered and made conferences. Therefore the government should try more to make new methods to decrease greenhouse gases.

Second, the government should prohibit excessive human activity such as development, because it can threaten polar bears. Today, the world is an industrial society, so we can't avoid a lot of gas and smoke. Nevertheless, people want to develop more and more. Thus, it would be big problem. Also, humans invade Arctic sea ice and extract ice and hunt polar bears. Both of them will give damage to the polar bear. For example, in the 20th century, many hunters killed polar bears and polar bears were recorded as endangered animals. Now, polar bears can't live well because the quantity of sea ice is reducing every day. For instance, i saw a picture in which a polar bear grabbed a small ice floe yesterday. It,s an amazing and horrible picture. In the end, the government must be concerned about human activity. If the government doesn't do that, polar bears will be extinct without delay.

Third, researchers have to keep studying about protecting polar bears. Even though there are no good consequences yet, we should keep going because this problem is not for only polar bears but also for humans. Also, the government needs to researchers continually, because this study requires a lot of money. If we stop studying this, we can't solve this problem clearly. Maybe we always make a temporary expedient. As a result, we need to study to save polar bears. For example, some developed countries have made good institution for protecting polar bears.

In conclusion, we have to do those three things to save polar bears. I don't know what result will come, but we should make an effort. If we allow this dangerous situation, we will get a serious problem, too. Therefore, not only the government but also people have to have a mind to reduce greenhouse gases, to control human activity, and to continue investigation in order to shield polar bears.

Reference:

Terhune, L. (2007, January 04). Polar Bears Face Serious Threat; But scientists say there is time to save them, and the polar ice caps. State Department Documents and Publications. Retrieved October 26, 2007, from Lexis Nexis database.

Wednesday, October 24, 2007

Polar bear Summary response#1

In Heilprin's (2007) article entitled "Polar bear population to drop by two-thirds by 2050, scientist say" he states that polar bear will be extinct because of global warming and humans, with using quotes from others. The most important reason is sea ice, because sea ice is decreasing rapidly now. Actually, polar bears live on Arctic ice, so it removes their habitat. For example, polar bears hunt seals not on land or in open water but on sea ice. Therefore, if ice melts continually, they can't hunt or breed. They are apt to be extinct in the world. Although, in this article, this situation is clearly horrible, now there is still time to save polar bears. It says we have to respond rapidly to reverse the causes of global warming. Finally, the author points out that global warming and human's actions are going to eliminate polar bears, because global warming leads to melting sea ice and pollution and humans kill them. Also, he states that we need responses to prevent global warming and change humans’ actions.

This article talks about endangered animal, especially polar bear. Also, he states it is related with global warming and human. I think the author uses quotation very well because he helps me to understand the article easily. For instance, I know that polar bears are in dangerous situation, because he gives many examples in the article. Then, I also think global warming and human's action cause serious problems not only for polar bears but also for most animals. Therefore, I'm going to talk about how global warming and humans affect polar bears' lives because it is a very important problem to the ecosystem. We are also in danger if we don't know what a horrible problem it is.

First, global warming melts sea ice because global warming makes temperatures go up and ice melt. Polar bears can't live on land or open water, so they will disappear. Also, they can breed only on sea ice because they usually hunt seal on ice. If there is no ice, they don't know hoe to hunt, and if they can adjust their life to a changed place, they will need a lot of time. Global warming is going to change climate warmer, so polar bears go up to parts of the poles. It can cause saturation, because there will be many polar bears in a small place and also there are few seals for them. Therefore, we have to stop global warming to protect polar bears.

Second, the government should make a law to prohibit hunting polar bears. Hunting polar bears is one of the problems because some hunters hunt them for their economic profit and just for fun. I think those people have to get punishment, because polar bear is not a common animal. If people hunt a lot, polar bears will move to the center of the polar area. It also causes the same situation as my first opinion. Actually, we don't need to hunt them because there are many animals which we can hunt in the world.

Third, these days, humans always try to develop their lives. It is one problem that threatens polar bear. Actually, many companies and countries destroy Arctic sea ice, because of their business, so polar bears lose their habitat. For instance, some countries destroy sea ice to make a route for their ship. Then, many countries make camps on Arctic sea ice to investigate something in that place, and want to go to the Arctic. Those explorers want to go to the Arctic. Those camps can pollute that place easily because they throw away many wastes. Polar bears can get damage because of them. For example, polar bears avoid people if people try to catch them for their investigation. Then, they can't live freely in their habitat.

In conclusion, government should make sure methods to take care of them. Specially, we should try to reduce greenhouse gases and carbon dioxide, because these gases are the big problem of global warming. Then, government has to prohibit heartless development and hunting. If we can stop those problems, polar bears will increase and the ecosystem will be better. Therefore, we have to think about this problem continually and act to protect polar bears as soon as possible.

Reference:

Heilprin, J. (2007, September 08). Polar bear population to drop by two-thirds by 2050, scientist say. Associated Press Worldstream. Retrieved October 23, 2007, from Lexis Nexis database.

Tuesday, October 23, 2007

Practice S/R Global Warming

In Bhattacharya's (2004) article entitled "Global warming threatens millions of species," she mentions that global warming makes natural conditions worse, such as extinction of organisms and changing climate. Then, habitat destruction, invasion by alien species, and overexploitation by humans result from changing climate and result in extinction. Those studies state the possibility of making less damage. The author disagrees with those studies, because she thinks many species are slipping into extinction. Actually, she also doesn't want to harm the ecosystem with other opinions. She is concerned about how to prevent global warming. In other words, she argues we have to not try to reduce damage, but prevent global warming. As a result, she says we have to try to stop causing global warming.

Her argument is very logical, so preventing global warming is more important than reducing harmful results. Then, in the first part of the article, she explains the danger of global warming well. If we don't try to prevent global warming, we will get many serious problems. Thus, every person should the try to prevent global warming, and also we have to know what causes global warming. Then, the government has to encourage citizens to try cutting emissions of greenhouse gases, employing new energy, and employing efficient technologies.

First, reducing the quantity of greenhouse gas is a good way to prevent global warming. Actually, we emit a lot of greenhouse gas every day because we live in an industrial world. If we don't use gasoline cars, it is good to reduce greenhouse gas because cars make too much an carbon dioxide. This gas plays a big role in making global warming. For instance, an area which has many companies is hotter than the countryside or an island, even if they have the same latitude. The government should make a law to reduce greenhouse gas, expecially mass transportation.

Second, inventing new energy is also good for us. It is not only preventing global warming but also improving our life. In these days, many people try to make a new energy because we are in a shortage of energy resources. Nowadays energy is harmful for global warming, so we have to invent natural forms of energy. Thus, government has to help people who try to make new energy such as diesel and solar power.

Finally, inventing new technologies is also good to prevent global warming. Today, most people use gasoline cars. If we invent cars which have new technology to prevent global warming, we can reduce our problem. Also we can invent another thing, especially machines which ren on natural energy. Finally, we have to make new technologies as soon as possible.

In conclusion, we must try to do all of these, because global warming causes such big problems such as extinction of animals and plants. Then, sea levels will rise and many islands will disappear if global warming keeps going. Finally, humans will get many risks like diseases. Therefore, we should prevent global warming by cutting emissions of greenhouse gases, inventing new technology, and exploiting new technologies.

Reference:

Bhattacharya, S. (2004, January 07). Global warming threatens millions of species. Newscientist.com. Retrieved on October 18, 2007 from http://www.newscientist.com/article.ns?id=dn4545&print=true

Tuesday, October 2, 2007

ME

Hi

I'm seungho jang