The properties of this clear sea ice were very similar to the ice from the green iceberg.

这种透明的海冰的性质与绿色冰山上的冰块非常相似。

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The forward movement, the melting at the base of the glacier where it meets the ocean, and waves and tidal action cause blocks of ice to break off and float out to sea.

冰川的向前移动，其底部与海洋接触处的融化，还有波浪和潮汐运动，导致冰块断裂，漂浮到海上。

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The formation of sea ice causes the concentration of salt in surface waters to increase; less sea ice would mean a smaller increase in the concentration of salt.

海冰的形成导致表水中盐的浓度增加；海冰的减少意味着盐浓度的增加幅度较小。

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One of the scientists says the past six years have shown the lowest Arctic sea ice cover ever measured.

VOA: special.2009.05.05

The center says September Arctic sea ice is decreasing at a rate of more than eleven percent every ten years.

VOA: special.2009.10.27

The amount of ice cover and its thickness are two measures of the health of the Arctic Sea.

VOA: special.2009.05.05

To some people, including, almost certainly, those who write the headlines in the Daily Express, the fact that the same phenomenon might explain either record low sea ice or continued recovery of sea ice will be seen as inconsistency, poor science, or something more suspect.

ECONOMIST: Britain��s cold snap is explained by the Arctic oscillation

Mechanisms on the verge of being instigated include loss of Arctic sea ice, shrinkage of the Greenland ice sheet, loss of Antarctic ice shelves, and shrinkage of the Antarctic ice sheets.

FORBES: Breaking News: The Climate Actually Changes!

They spend most of their time on sea ice, this cap of ice that is floating around on the surface of the Arctic Ocean.

CNN: Polar bear now listed as 'threatened' species