sea ice

基本解释

As the researchers pointed out, because polar bears live primarily on sea ice, their remains often end up in the ocean.
如同研究人员指出的，由于北极熊都生活在海冰上，它们的尸体最终留在了海洋中。
Unlike the Arctic, where much of the sea ice is — at least for now — year-round, the Southern Ocean’s sea ice is thin and seasonal.
与大部分海冰（至少目前如此）都有一年左右的历史的北极有所不同，南大洋的海冰很薄且是季节性的。
Adélie Penguins require dry land for breeding grounds and stone pebbles for creating nests, but their greater survival depends on the presence of sea ice.
阿德利企鹅需要干燥的陆地作为滋生地，鹅卵石去建巢穴，但是他们更大的生存依赖是海洋冰川的出现。

One of the scientists says the past six years have shown the lowest Arctic sea ice cover ever measured.
The center says September Arctic sea ice is decreasing at a rate of more than eleven percent every ten years.
He says a warmer Arctic and thinner sea ice changes the balance between the normally cold Arctic and warmer areas.

Change (IPCC) in 2007 underestimated the rates of change now observed in sea ice.
FORBES: NASA-Funded Group Doctors Sea Level Data