Ice age data show that back in the 1970s and 1980s, old ice drifting into the Beaufort sea would generally survive the summer melt season.

冰川时期的数据表明，早在20世纪70年代和80年代，老海冰一旦流入波弗特海，一般就能安然渡过当年夏天的冰融季节。

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This past winter's negative phase of the Arctic Oscillation transported old ice (four, five, and more years old) from an area north of the Canadian Archipelago.

去年冬天北极这种负向振荡从加拿大群岛北部地区运来多年老海冰(四，五年或更多年的老海冰)。

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While the very oldest ice has all but disappeared, there has been an increase in two - and three-year-old ice, which could potentially thicken and slow the decline at least for a while.

虽然最老的冰川几乎都消失了，但是一些两三岁的冰川还在增加，它们可能会变厚，至少会在短时间内减缓冰川面积下降的趋势。

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Scientists say ninety percent of all Arctic sea ice is only one or two years old.

VOA: special.2009.05.05

Old ice, also called multiyear ice, tends to be thicker ice and less prone to melting out in summer.

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The warming trend means that, every year, there is less old ice and more new ice that has formed in the winter just past.

ECONOMIST: Summer ice in the Arctic Ocean is vanishing rapidly

The station van, an old ice-cream truck, is parked outside.

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