Polar Bear and Global Warming

The rarely found Polar bears are going to suffer from the shortage. This animal is under the threat of extinction, as there are changes that this species might come to an end by 2050. The polar bears are depended upon the natural habitat. They mostly live in the cold regions of the world.
The ice of the Arctic have started to melt and so, it is having a great impact on the habitat of the bears. which is already visible. a study conducted by the scientists of the California University  showed that that the jaws of the polar bears are less strong than the grizzly bears. This proves that it will be difficult for the polar bears to adjust in a vegetarian situation. They eat mostly seals and other fatty marine mammals that they hunt from the ice and water.

So, these bears mostly look for ice, round the year.Not only the temperature also the rapid movement of icebergs in these regions may leave some bears stranded in food-poor areas, or it might require long and exhausting swims from food-rich areas back to ice. As there is being a change in there habitat so there reproduction rate is also decreasing. The number of children are less and then the fight for food for survival. At last only two or three survive. 
The global warming is having a huge effect on the life of these innocent animals also. What have they done that they are paying for it. It is we who are the culprit of every thing but still try and avoid it. When the people see any action taking place in against the global warming normal people do not support it. Then they will sat that it is a scientific fiction, nothing real. 
How can they be so casual, when they are seeing or reading the results of what is happening round the world because of this, they still believe it to be fake. The type of species of bear which could still survive would be the grizzly bears, polar bears will become extinct first then the other types of bears.