Beluga
Latin name: Delphinapterus Leucas ,Conservsation status: near threatened (population is unknown)
Belugas make such a variety of sounds—clicks, twitters, whistles, and mimics of other sounds—they have been nicknamed "sea canaries." As much as 40% of their body mass is blubber, which stores energy and keeps them warm in temperatures as low as 0 °C. The smallest whale on the planet, a baby Beluga gains up to 200 pounds a day.
Belugas live in Arctic and Sub-Arctic waters. Impacts from climate change include: an increase in ship traffic as sea ice declines, oil exploration and extraction, fisheries by-catch, and disruption of the food web. As Arctic waters warm and currents change, the Humpback (a competitor) and the Orca (a predator) may move north and stay longer. Some Beluga populations are also threatened by hunting, pollution and habitat loss.
Other animals at risk
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.
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.
Tufted Puffins are threatened by sea level rise and storm surges which destroy habitats and breeding areas. In some areas of North America warming seas are causing the fish that the Puffins feed on to migrate farther north, making it difficult for them to find adequate food. Other threats are entrapment in fishing nets, oil spills, pollution, ingestion of plastic, human disturbance of breeding colonies and introduced predators such as rats and foxes.
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.