Polar Bear
The species most directly threatened by climate change — with some populations projected to disappear within decades
No photo available for Polar Bear
Population
Around 26,000 individuals
Location
Arctic regions of Canada, Russia, Norway, Greenland, and USA (Alaska)
Overview
Polar bears are the species most immediately and visibly threatened by climate change. They depend on sea ice to hunt ringed seals, and sea ice extent in the Arctic is declining at approximately 13% per decade. Some polar bear subpopulations are already showing declining body condition, reduced reproductive rates, and increased mortality as ice-free seasons lengthen.
Why they're at risk
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Sea ice loss reduces the time polar bears have access to their primary prey, forcing longer fasting periods on land.
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Warmer temperatures increase the frequency of rain-on-snow events that can collapse maternity dens and kill cubs.
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As ice-free seasons lengthen, polar bears increasingly interact with humans in coastal communities, creating conflict.
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Industrial development in the Arctic — shipping, oil exploration — adds stress and potential contamination.
Reasons for hope
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Current Arctic sea ice loss projections suggest that aggressive climate action (limiting warming to 1.5°C) could preserve much of the sea ice habitat polar bears depend on.
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Some polar bear subpopulations (particularly in the Canadian High Arctic) remain stable due to later ice loss in their specific region.
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Indigenous community-based monitoring programs provide more detailed local data on polar bear behavior and condition than any other monitoring method.
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International cooperation between the five Arctic nations (Canada, Russia, USA, Norway, Greenland/Denmark) on polar bear research and harvest management has been maintained even during periods of political tension.