Polar Bears, Energetics & Ice-Free Days (Steve Amstrup)

Video Shot in: 2022

Dr. Steve Amstrup and his colleagues published a groundbreaking paper in 2020, shedding light on the future plight of polar bears in different regions. By analyzing the energetics of polar bears and their ability to fast during ice-free periods, they predicted when different sub-populations will face challenges due to climate change. The study, involving 13 of the world’s 19 sub-populations of bears, provided valuable insights into the impending risks polar bears are likely to encounter. For example, in Hudson Bay and the Beaufort Sea of Alaska, polar bears are already facing significant challenges. This information is crucial not only for scientific understanding but also for policymakers and conservation managers.