Polar Bear

Although it looks white, Polar Bear fur is actually transparent and hollow and traps heat from the sun. The skin under their fur is black and absorbs the sun's heat. They also have a thick layer of fat so overheating can be a bigger problem than staying warm. Polar Bears can swim 6 mph—up to 100 miles at a time—and run as fast as 25 mph.

Polar Bears live only in the Arctic. Loss of sea ice has a critically adverse effect on Polar Bears. They hunt from the edge and build snow dens on the ice for resting and raising their cubs. Sea ice decline could open the Arctic to shipping and tourism, further disturbing Arctic habitats. Other threats are oil development and industrial pollution that reaches the Arctic through air and ocean currents.

Other animals effected by climate change

Shenandoah Salamander
The Shenandoah Salamander lives in an isolated, high altitude region of Shenandoah National Park, USA. Like all amphibians who have thin, permeable skin, salamanders are very sensitive to environmental changes. If average temperatures or moisture increase, this salamander, restricted to its cool micro-climate, will be at risk—having no place to go but to lower, even warmer, altitudes. If warming causes other species of lower altitude salamanders to migrate higher, they will compete for the Shenandoah's cool, moist habitats.

Polar Bear
Polar Bears live only in the Arctic. Loss of sea ice has a critically adverse effect on Polar Bears. They hunt from the edge and build snow dens on the ice for resting and raising their cubs. Sea ice decline could open the Arctic to shipping and tourism, further disturbing Arctic habitats. Other threats are oil development and industrial pollution that reaches the Arctic through air and ocean currents.

Bicknells Thrush
The breeding habitat of Bicknell's Thrush is primarily restricted to mountain spruce forests of Northeastern US and Canada. They winter in the Caribbean and spring migration north is cued by day length. If spring arrives early in the north and the Thrushes arrive at their normal time, the abundance of food—insects and fruit—would already have peaked. Warming temperatures also produce an abundance of spruce and fir cones—feeding and increasing the population of Red Squirrels, a main predator of eggs and chicks. Storms and hurricanes threaten the Thrush's tropical winter habitat. Pollution, logging and deforestation threaten their spring breeding and winter habitats.

Sockeye Salmon
For decades wild salmon populations have been in decline from human causes: over fishing; habitat degradation—logging, mining, agriculture and dams; pollution; and interaction with hatchery or farmed salmon. These conditions and threats may hinder their ability to adapt to the effects of climate change. Salmon thrive at specific freshwater temperatures—warming air raises water temperature. Early snow melt and increased rains cause physical changes to spawning streams.