2016.09.17 BBC News 僅作個(gè)人翻譯練習(xí)，侵犯立刪。中秋快樂：）
來源：http://www.bbc.com/news/science-environment-37376896
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2016年，北極冰蓋面積到達(dá)歷史倒數(shù)第二低水平，與2007年并列。
截至9月10日，海冰范圍維持在414萬平方公里，相比于2012年同樣低的339萬平方公里。
北極海冰在每年的秋冬季節(jié)增加，在春夏季節(jié)開始融化。
長期以來，被認(rèn)作地球氣候系統(tǒng)變化的敏感指標(biāo)。
海冰范圍由美國國家冰雪數(shù)據(jù)中心（ NSIDC ）在科羅拉多州Boulder記錄，利用衛(wèi)星測量。
詞匯：satellite
Second lowest minimum for Arctic ice
Arctic ice cover in 2016 reached the second lowest minimum on record, tied with 2007.
The sea-ice extent on 10 September stood at 4.14 million sq km, some way short of the 3.39 million sq km record low in 2012.
Arctic sea-ice cover grows each autumn and winter, and shrinks each spring and summer.
It has long been regarded as a sensitive indicator of change to the Earth's climatic system.
The ice extent has been tracked by the US National Snow and Ice Data Center (NSIDC) in Boulder, Colorado, using satellite measurements.
