Threatening Greenhouse Gases to Polar Bear Populations

                Greenhouse gases are an apparent threat to the polar bear populations around the world. According to updated U.S. Geological Survey research models, greenhouse gases will remain the primary threat to polar bears through both scenarios: a reduced greenhouse gas emission scenario, and an unchanged greenhouse gas emission scenario. Although the unchanged greenhouse gas emission scenario will certainly destroy the polar bear population much faster (approximately 25 years faster), the reduced scenario surprisingly still shows for a great decline in polar bear population. This is due to the accumulation of the emissions overtime, which will take decades to stabilize. The models also showed specific threats the gases cause to polar bears such as sea ice loss and the decline of prey availability.

                The most hinted solution in the article was to put restrictions on the greenhouse gas emissions. This might not solve the decline completely; however, it definitely slows down the process. USGS scientists report that the most effective approach is to immediately reduce greenhouse gas emissions that would limit global warming to less than 2 degrees Celsius.

                This solution is much easier said than done. The biggest barrier to this solution is time. It would take years to make global policies that reduce the greenhouse gas emissions. By that time, it will be too late. I believe this is a clear problem that should be addressed very swiftly. If we do not attempt to try to limit our greenhouse gas emissions soon, the polar bear population will become extinct. However, due to the huge amount of time it takes to pass global policies, it may be impossible to save the polar bear species.

http://www.sciencedaily.com/releases/2015/07/150703085252.htm