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23rd July 2020
12:07pm BST

"Any of us know that we can only go without food for so long, that's a biological reality for all species.
"Showing how imminent the threat is for different polar bear populations is another reminder that we must act now to head off the worst of future problems faced by us all."
It is expected that almost all 19 sub-populations of polar bears will be extinct by the end of the century if climate change and global warming are not tackled appropriately.
The Arctic region has rapidly warmed over the past few years, with the ice extent in the summer months declining by up to 13 percent compared to the 1981-2010 average.
"The trajectory we're on now is not a good one," said Dr Amstrup.
"But if society gets its act together, we have time to save polar bears. And if we do, we will benefit the rest of life on Earth, including ourselves."Explore more on these topics: