Hudson Bay Polar Bears Face Extinction as Ice-Free Periods Lengthen

New research indicates that prolonged ice-free seasons in Hudson Bay threaten the survival of polar bears by reducing their hunting periods and reproductive success.

Hudson Bay's ice-free periods have extended from 120 to 150 days over the past three decades.
Polar bears rely on sea ice to hunt seals, their primary food source, and longer ice-free periods lead to starvation.
Researchers warn that if global warming exceeds 2.1°C, the ice-free period could surpass the bears' maximum fasting duration.
The study highlights that reproductive success is compromised as early ice melt shortens the nursing period for cubs.
Current projections show a potential extinction of the Hudson Bay polar bear population if greenhouse gas emissions are not curbed.