Nowadays, Our earth has faced with  global warning or climate change that destroyed the environment  and made our earth  worse. It impacted to the various creatures and caused the extinction eventually. Including the polar bears in northern Canada, which have been affected because polar bears are animals that live in cold weather. However, due to the effects of global warming ,making polar bears faced with many hop variance of a habitat or food.

Polar bears are classified as marine mammals because they spend most of their lives on the sea ice of the Arctic Ocean. They have a thick layer of body fat and a water-repellent coat that insulates them from the cold air and water. Polar bears like other bears are both herbivores and carnivores, they are omnivores.  Which means they eat both plants and meat. But then our earth has faced with global warming or climate change, it has made polar bears become endanger because of the hot weather melt ice. As a result, polar bears  have to stay on shore more. Polar bears need the  ice to live.They  hunt seals from the  ice floes and with less time on the ice. The less  time they have to eat. Polar  bears do  not hibernate.They have to  have enough fat storage build up throughout the winter to last them throughout  the spring, summer, and parts of fall.

Polar bears are in serious danger of going extinct due to global warming. Endangered Species Act as threatened by extinction primarily because of global warming. This listing happened because of the ongoing loss of critical habitat for polar bears, the arctic sea ice on which they live and depend to hunt their almost exclusive prey, seals. Rising temperatures in the world’s oceans are causing sea ice to disappear for longer and longer periods during the late summer, leaving polar bears insufficient time to hunt. This is a worldwide problem, and the Endangered Species Act has listed polar bears as threatened everywhere in the world they occur. Polar bears can only survive in areas where the oceans freeze, allowing them to hunt seals living under, on, or in the frozen polar ice cap.

So in the next 20 years in the northern Canada ,if we want to see polar bears,we need to help and protection to ensure a long, healthy future for the species. The best way we can help polar bears is by reducing our carbon emissions and working with National Wildlife Federation to campaign for reductions in global warming pollutants.

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