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Bleak future predicted for polar bears in Canada’s Arctic
published in the journal Nature Climate Change says cubs in the Davis Strait and the west of Hudson Bay will follow a similar path in the decades afterwards. Polar bears have become the face of climate change — here’s the current state of the species Polar bears use sea ice as a way to hunt seals, but when the ice recedes, the bears take to dry land and eat less energy-rich foods, effectively fasting for the summer months.As climate change causes further reductions in summer sea ice, the bears have been fasting for longer periods, with already noticeable effects on reproduction patterns.“The first scientific study on polar bears and climate change was published in 1993.