世界自然保护联盟红色名录已经将北极熊确定为渐危物种之一，将全球气候变化定义为影响北极熊栖息地改变的“潜在杀手”。
The IUCN red list identifies polar bears as a vulnerable species, citing global climate change as a "substantial threat" to their habitat.
世界自然保护联盟红色名录已经将北极熊确定为渐危物种之一，将全球气候变化定义为影响北极熊栖息地改变的“潜在杀手”。
The IUCN red list identifies polar bears as a vulnerable species, citing global climate change as a "substantial threat" to their habitat.
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