CBC Manitoba: Churchill considers burning, composting waste to keep polar bears out of town

John Iacozza, an environment and geography instructor at the University of Manitoba who studies polar bears’ habitat, said the later sea ice forms, the later it is before polar bears can go out onto it to hunt for food — which can force them shore and into contact with people.

As sea ice formation continues to vary, the bears could experience “dramatic impacts,” he said.

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