Global Warming Affects Polar Bears
Bingyang Li
GLS 470
Professor Silvia
December 4, 2011
Global Warming, Polar Bears 2
Global Warming Affects Polar Bears
Recently, economic activities are more active in some developing countries, such as China, India and Brazil. Moreover China is the second largest economy country only behind the United States. Most of this developing country did not concern about the environment issue, as a result more emission came out to the earth. For example, China has more than 200 million automobiles and as a speed of growth is about 13 million per year, meanwhile the United States has about 255 millions automobiles and the growth speed is more than 10 million per year. So, we can see how large pressure forced on the earth. It is clear that the globalization causes the climate change. Global Warming continues presenting on the earth and bringing many catastrophes to the earth. The polar bears most scientists think they are the first species in the world influenced by the climate change. Since the earth becoming warmer and warmer, the sea ice shrunk violently. As a result, the polar bear was threatened by those changes. More important thing is that if the situation still exists, polar bears will extinct in the future. This paper is focusing on the effect of the Global Warming on the polar bears’ habitat, behaviors and population.
Effect on Habitat
The first effect of the Global Warming on the polar bears is their habitat. Habitat is the place providing animals with food, sleeping area and every essential material to live. In the Arctic, the polar bears’ habitat becomes worse recently due to the shortage of sea ice and food.
The first change in habitat is increasing the temperature of the Arctic. With the
Global Warming, Polar Bears 3 temperature increasing, the sea ice over here melts quickly. Finally, this should transfer to the polar bears and lead they die out. David barber, an
References: Campbell, C., & Lunau, K. (2008, February 4). The war over the polar bear. Maclean’s, 121(4/5), 46-52. Retrieved from http://search.ebscohost.com/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=shapiro&db=a9h&AN=28815594&site=ehost-live Cole, D. (2009, April). The plight of penguins and polar bears. U.S. News & World Report, 146(3), 76-78. Retrieved from http://search.ebscohost.com/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=shapiro&db=a9h&AN=36885936&site=ehost-live McGrath, S. (2011, July). On thin ice. National Geographic, 220(1), 63-72. Retrieved from http://search.ebscohost.com/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=shapiro&db=a9h&AN=61358502&site=ehost-live O’Neill, S., Osborn, T. J., Hulme, M., Lorenzoni, I., & Watkinson, A. R. (2008 December). Using expert knowledge to assess uncertainties in future polar bear populations under climate change. Journal of Applied Ecology, 45(6), 1649-1659. doi: 10.1111/j.1365-2664.2008.01552.x Owen, M. (2010 June). Threatened polar bear fight for survival. USA Today Magazine, 138(2781), 16-16. Retrieved from http://search.ebscohost.com/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=shapiro&db=a9h&AN=51547592&site=ehost-live Global Warming, Polar Bears 10 Swift, A. (2011, January 15). Swift action to cut greenhouse emissions could save polar bears. Science News, 179(2), 5-6. Retrieved from http://search.ebscohost.com/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=shapiro&db=a9h&AN=57389375&site=ehost-live