在未来的几个月，一些南极的无冰地区，将有5万阿黛利企鹅筑巢。
Over the coming months, the few parts of Antarctic that are ice-free will be the stage on which 5 million Adélies will build their nests.
从阿拉斯加东南海岸岛屿的洞穴中提取的化石的放射性碳年代测定法表明，在最后一个冰河时代，该地区至少有一部分保持无冰状态。
Radiocarbon dating of fossils taken from caves on islands along southeastern Alaska's coast suggest that at least a portion of the area was remaining ice-free during the last ice age.
更多近期的地质研究证明了13000年前的冰川消退现象和整个加拿大不列颠哥伦比亚省主要沿海地区内无冰区的存在。
More recent geologic studies documented deglaciation and the existence of ice-free areas throughout major coastal areas of British Columbia, Canada, by 13,000 years ago.
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