Polar bears could be extinct in 80 years if more not done about climate crisis

Polar bears depend on sea ice to hunt for food and face extinction as it continues to melt at a rapid ratePolar bears will be wiped out by the end of the century unless more is done to tackle climate change, a grim study predicts.Scientists say some populations have already reached their survival limits as the Arctic sea ice, which they rely on to hunt for seals, shrinks. The melting ice is forcing the carnivores to roam for long distances or on to shore, where they struggle to find food and fee