Climate change and pollution threatens the polar bear

Climate change and environmentally hazardous substances are the most important threats to polar bears. Climate change may reduce the extent of sea-ice significantly, and thus reduce the habitat available for polar bears for feeding and reproduction. Hazardous substances like PCBs are also a threat to the health and reproductive capacity of polar bears.  New scientific evidence indicates that the survival rate of cubs is falling, and that mortality is increasing also for grown-up bears.

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