An-Najah News - Polar bears may be vanished by the end of the century unless more is done to handle climate change. Climate change has been starving polar bears into extinction. In some regions, they are engulfed in a vicious downward spiral, as the shrinking sea ice cut shorts the time bears have for hunting seals. They rely on the sea ice of Arctic ocean to hunt seals and struggle to find food. If the ice goes, they have no place to go.