科学家预言今夏70%甚至全部的一年冰会融化，Serreze说。
Scientists predict that at least 70 per cent of this single-year ice – and perhaps all of it – will melt completely this summer, Dr Serreze said.
今年的早些时候，科学家们曾发出警告，因为较薄的“一年冰”的比例高于往常，2008年海面冰层的总量会跌至历史新低。
Earlier this year, scientists warned that sea ice volume reached a record low in 2008 due to an unusually high proportion of the thinner first year ice.
尽管石油贮藏在浅水区域，但是一年有8到9个月海面上都结着冰。
Although the oil is in shallow waters, the sea ices over for eight or nine months a year.
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