As well as humans, animals feel the effects of global warming too. The melting of the polar ice caps has caused a problem with the eating habits of the polar bear. Polar bears depend heavily upon ice to feed upon seal. The seals come up out of the water and through breathing holes in the ice. This is wear the polar bears wait for a seal, and then eat the seal. As size of the ice caps decrease it becomes harder for the entire population of polar bears to locate the seal. With this the eating habits of the polar bears are greatly effected causing a decrease in the entire polar bear population.
For more information about polar bears and the melting ice caps.