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.

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