my research paper...

To be quite honest, I have alot of work to do with my paper. I know that I am going to write it on how global warming has changed the lives of arctic animals. Then I will split into talking about polar bears and then focusing on penguins. I will then try to tie the ends up and conclude my paper. My question isn't the greatest, but here it is: How does climate change affect arctic animals-polar bears and penguins? If anyone has comments, please let me know.

Penguins and Global Warming

I've been researching global warming's effect on the penguins and their population and have found a few sites that are useful, but if anyone has any others that they are willing to share with me, I'd be open to suggestions. These are just a few of the sites that I've checked out:
http://news.nationalgeographic.com/news/2004/09/0913_040913_penguins.html

http://www.commondreams.org/headlines02/0203-03.htm

http://www.commondreams.org/headlines06/1216-04.htm

I've just started looking for information, that's why I've only got 3 sources here for you. Thanks.