Nations Near Arctic Declare Polar Bears Threatened by Climate Change” by Andrew C. Revkin

According to the article “Nations Near Arctic Declare Polar Bears Threatened by Climate Change”, it mentions that the polar bears now are under risks of the global warming. The statement was from a three-day meeting in Norway, and the countries participating were the United States, Norway, Canada, Russia and Denmark. It is believed that the emission of greenhouse gases causes the global change and global change causes the climate change. Even though the polar bears are protected by cutting down the hunting, they are still in the danger of the climate change. From my viewpoint, no matter how we protect the polar bears from hunting, we still have to stop and slow down the climate change because the polar bears will not survive under the warm temperature. The polar bears are the icon for us to foresee what things will happen if the temperature continues rising. One of them is the extinction of many species. After reading this article, I wonder how and how much we can do about the climate change.
http://www.nytimes.com/2009/03/20/science/earth/20bears.html?_r=2&ref=science