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Scientists are sounding the alarm as wildlife lovers face one of their biggest fears: polar bears going extinct. Scientists are blaming the climate crisis and say it could happen by 2100.
A study published Monday in the journal Nature Climate Change describes how critical sea ice is to polar bears’ survival. Sea ice loss is happening at a rate polar bears cannot keep up with. The melting of sea ice is forcing the species onto land, prolonging fasting periods, and declining reproduction rates.
“You need the sea ice to capture your food,” Peter K. Molnar, lead author of the study and a researcher at the University of Toronto Scarborough said, according to The New York Times. “There’s not enough food on land to sustain a polar bear population.”
Bears can fast for months after a season of consuming built up fat from their seal diet. The problem is, sea ice loss is causing a prolonged fasting period, therefore starvation risks increase.
“There is very little chance that polar bears would persist anywhere in the world, Dr. Molnar said. “Except perhaps in the very high Arctic in one small subpopulation.”
Dr. Molnar added that even if global emissions were reduced, “we still are unfortunately [still] going to lose some.” Polar bears in the southernmost populations are at the highest risk.
