22. A 2007 study by the U.S. Geological Survey found that two-thirds of the polar bears on the planet could disappear by mid-century if Arcticice keeps melting.
23. Our data will help scientists better understand how fast the volume of Arcticice is decreasing and how soon we might see a nearly ice-free Arctic in summer.
24. The National Snow and ice Data Centre tracks the Arcticice-shelf using tools developed by NASA, and has produced monthly satellite maps going back to 1979.
美国冰雪数据中心(National SnowandIce Data Centre)使用NASA开发的工具跟踪观察北冰洋的冰架,并从1979年以来每个月都制作卫星地图。
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25. Mr Anderson looks in on the extraordinary, tiny world of the tributary system within the Arcticice, formed by trickles of briny water which gets squeezed as it freezes.
安德森细致考察了北极冰上特异而微小的支流系统,这些支流由咸水的细流组成,一旦结冰,就几乎断流。
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26. 9/17The year saw a flood of scientific papers showing Arcticice and the Greenland ice sheet is melting faster than ever, leading to a race for the new riches of the Arctic.
27. The World Meteorological Organization said 2008 was the 10th warmest year on record. Its year-end report found 2008 was marked by the second-lowest level of Arcticice cover.
28. The World Meteorological Organization said 2008 was the 10th warmest year on record. Its year-end report found 2008 was marked by the second-lowest level of Arcticice cover.