However, travelers to Antarctica have repeatedly reported seeing green icebergs in the Weddell Sea and, more commonly, close to the Amery Ice Shelf in East Antarctica.

然而，去往南极洲的旅行者们一再宣称在威德尔海看见过绿冰山，并且在南极洲东部靠近美国冰架的地方更为常见。

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The melting of an ice shelf, which is merely a floating projection into the sea, would not affect sea levels.

冰架仅仅是底部向海里突出的漂浮物，它的融化不影响海平面。

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This time of year, they should be foraging from the sea ice floating over the productive waters of the continental shelf.

往年这个时候，它们应该在漂浮在这片大陆架地区食物丰富的海域上的冰面上捕食。

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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.

VOA: special.2009.06.03

"The collapse of Antarctic ice shelves is largely thought to be caused by warming of the atmosphere, but it appears that changes in sea temperature and ice-shelf structure are also important, " said Prof Glasser.

BBC: Polar expedition to study Antarctica's climate history

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

"Reduced sea-ice conditions and unusually high air temperatures have facilitated the ice shelf losses this summer, " said Dr Luke Copland from the University of Ottawa.

BBC: Major ice-shelf loss for Canada