Sun: POLAR bears are struggling to find food on land as a warm climate melts the ice they need to survive. The bears – among hundreds in Hudson Bay, Canada – normally do all their feeding on the ice during the winter months. In danger … cubs could end up starving Barcroft But it is melting earlier in the spring and forming later in the autumn. So instead of being over the sea where they can hunt seals, they now have to adapt and forage for food on the Canadian …