Polar bears are struggling to get enough to eat as sea ice dwindles due to climate change, study finds / How polar bears stop ice from freezing on their fur / What polar bear poop can tell us about the future of the vulnerable northern species / Polar bears face higher risk of disease in a warming Arctic / Polar bears exposed to diseases as climate crisis further warms Arctic, warns new study / Research from Alaska finds more polar bears are exposed to pathogens / Polar bears' exposure to pathogens is increasing as their environment changes, blood samples suggest / Polar bears are sustaining ice-related paw injuries in a warming Arctic / New tech aims to keep polar bears and people apart / Climate change putting Hudson Bay polar bears at risk, study finds