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Climate Watch Shorts: Polar bears on the brink

Climate Watch Shorts

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When the ice in Hudson Bay melts each spring, northern Ontario becomes home to nearly a thousand polar bears, but scientists are noticing extreme weight loss among that population. Between 1984 and 2009, the average weight of a male polar bear in the region dropped by 45 kilograms, while females were 31 kilograms lighter. A shorter freeze-up season means less time to access vital food sources, and that puts Ontario's polar bear population at risk.

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May 21, 2020

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