Polar Bears and Climate

Climate change refers to the long-term climate characteristics average and variable change, leading to one of the most important and common problems in today's world. In many cases, climate change is caused by human activities and natural gas, and has physical and economic impacts on the world and people. Climate change has a social impact on health, food production, and growth. Climate change has led to the spread of certain infectious diseases and increased mortality due to heat waves.

Polar bear is one of the most dangerous marine mammals due to climate change. The biggest problem of polar bears on climate change is the melting of ice due to the rise in temperature. Polar bears lose their habitat and food source as the ice melts. Polar bears are known to eat more than 80 species of animals, but most of their diets are made up of seals, which are also threatened by global warming. Polar bears are getting more and more water because they are tired because they need to swim further to find ice and prey.

Polar bear split with brown bears from 400,000 to 600,000 years ago and endured climate change. Polar bears are said to be able to adapt to terrestrial food sources as the sea ice they used to kill the seal has disappeared. However, most polar bear biologists believe that polar bears can not completely offset the loss of calories encapsulated fat and terrestrial food.

The main threat of polar bears is the loss of sea ice habitat due to climate change. As that particular scientific name (Ursus maritimus) shows, polar bears are actually marine mammals spending much more time on the sea than on land. Climate change is a serious threat to its happiness because the Arctic ice survives on the Arctic ice. Polar bears are affected by climate change in several ways. The population is decreasing. In the southern part of Canada's Hudson Bay there are no sea ice in the summer and polar bears must live on the ground until the bay freezes in autumn. On summer land, these bears will eat little or nothing at all. In only 20 years, the Husband Bay ice free period increased by an average of 20 days, shortening the searches for polar bear seals by about three weeks.