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研究：气候变化将使北极熊在本世纪末灭绝Climate change on track to wipe out polar bears by end of century, study warns
Climate change is starving polar bears into extinction, according to research published Monday that predicts the apex carnivores could all but disappear within the span of a human lifetime. In some regions they are already caught in a vicious downward spiral, with shrinking sea ice cutting short the time bears have for hunting seals, scientists reported in Nature Climate Change.
周一发布的一项研究称，气候变化正在饿死北极熊并迫使它们灭绝。该研究预测，北极熊这一食物链顶端的食肉动物可能会在百年内几近灭绝。科学家在《自然气候变化》上发表的报告称，在部分地区，由于海冰消融缩短了北极熊捕食海豹的时间，北极熊已经陷入数量螺旋式下降的恶性循环。
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