Global warming is one of the major issues in our world today. This issue effects the animals such as the polar bear. If we don't do something soon polar bears will be extinct. The only way to stop the extinction of polar bears is if we lower pollution. This can be done by hybrid, solar, or even electric cars. In my opinion, I believe that electric cars would be the best. One reason is that electric cars do not pollute. If we are able to do this I think that there would be less pollution. In addition, I believe that cutting down on pollution is necessary because pollution breaks down the ozone layer. This layer stops most of the UV rays from the sun to hit earth. UV rays can cause skin cancer, and other health issues. Also, all the heat from the sun is able to enter earth. This causes all the ice to melt down in the North and South Poles. This also effects the habitats of the polar bears. Even though it effects the polar bears know sooner or later it will start effecting us. For example, as the population grows our world will have less and lesser amount of open land. Furthermore, I believe that if there is something that we could do it is to save our planet from global warming and the start would be make electric cars in place of gasoline cars. If a law is needed for this than that would also be an answer. In order to save not just polar bears and many other animals, but also us these are the basic movements where our world needs to start.
http://www.edf.org/page.cfm?tagID=43083