sea-ice shelf

基本解釋

In prior decades, before 1995, low-concentration sea ice persisted during summers over the continental shelf in the Beaufort Sea.
波弗特海附近的環(huán)境條件對(duì)於北極熊的生存會(huì)越來(lái)越艱難。就在前幾十年，也就是在1995年以前，波弗特海區(qū)域低集中海冰一般會(huì)出現(xiàn)在夏季遍佈在大陸架範(fàn)圍以內(nèi)。
But staying put is not easy. The Brunt Ice Shelf moves as much as half a mile a year, like a conveyor belt built to toss tea-drinking scientists into the icy sea.
要想追蹤大氣狀態(tài)，科考站的坐標(biāo)位置很關(guān)鍵，但保持穩(wěn)定不動(dòng)竝不是一件容易的事情，佈倫特冰架每半年就要移動(dòng)半英裡之多，它會(huì)像一條傳送帶將整個(gè)科考站投入冰海之中。
But the lowest summer ice cap on record put sea ice far north of the outer continental shelf, the shallow, life-rich shelf of ocean bottom in the Bering and Chukchi seas.
但今年夏天北極冰帽麪積縮小至歷史最低記錄，使海冰推移至白令海和楚科奇海一帶底棲生物豐富的淺大陸架外圍的遠(yuǎn)北地區(qū)。
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In eighteen forty-one, the British navy officer James Ross discovered areas now called the Ross Sea and Ross Ice Shelf.

That breathing space would be useful if something really bad, such as the collapse into the sea of part of the Greenland ice-shelf, was in imminent danger of happening, and the realisation of the danger led to a political agreement that climate change had to be stopped rapidly.
ECONOMIST: Global warming