Retreating sea ice is reducing habitat for vulnerable Arctic species.
由于海冰减退，北极脆弱物种的生境正在缩小。
But in recent years, dozens - possibly hundreds - of bears are becoming stranded on the coastal plain because they cannot reach the retreating sea ice.
但近年来，几十-可能成百-的北极熊够不着正在消退的海上冰块，只得在沿海平原上滞留。
Scientists found that coastal erosion caused by retreating sea ice is damaging remains in an Inuit village in Alaska, including a fourth-century coastal cemetery.
科学家们还发现，受到侵蚀的海岸线已经威胁到了生活在阿拉斯加的因纽特人村庄，其中还有年久的沿海墓地遗迹。
The overall thawing of Arctic climates, as well as increasing sea level rise, have these islands retreating more rapidly than elsewhere in the world.
北极地区气候的整体解冻变暖以及海平面逐渐上升，使得这些岛屿比起地球上其他任何地球都消逝更快。
And retreating Arctic sea ice provides even more visible data to support conclusions of warming.
而北冰洋冰块的后退为变暖的结论提供了更明显的数据支持。
As the boat drifts back to sea, the retreating pinpricks of light along the shore resemble isolated outposts somewhere close to the end of the earth.
当船漂回大海时，沿岸倒退的针孔般的光点看似靠近地球尽头的孤立的前哨。
When disturbed, sea pens emit a greenish light and can deflate, retreating into their bulbous feet.
当感到遇到威胁的时候，海鳃立刻放出绿光，并向球根状的足部充气。
When disturbed, sea pens emit a greenish light and can deflate, retreating into their bulbous feet.
当感到遇到威胁的时候，海鳃立刻放出绿光，并向球根状的足部充气。
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