第2674期:Fingerprints of city-sized icebergs found off UK coast

Scientists found the deep tracks left by these icebergs by looking at energy companies' seismic surveys of the North Sea. It showed icebergs the size of Norwich were once found off the eastern coast of Scotland. This is the first hard evidence that the ice sheet that covered Britain and Ireland 18,000 years ago produced such large icebergs. 科学家们通过分析能源公司对北海的地震勘测资料发现了冰山留下的深深的轨迹。资料表明与诺里奇市大小相当的冰山曾出现在苏格兰的东海岸。这是首个确凿证据证明 1.8 万年前覆盖着不列颠和爱尔兰的冰盖曾行成过如此巨大的冰山。 The findings may help scientists answer fundamental questions about how the Antarctic ice sheet may be affected as the ice shelves around its edge become unstable in a warming world. 这些发现或许能帮助科学家们解答关于南极冰盖的一些关键问题：随着全球变暖，南极冰盖边缘的冰架变得愈发不稳定，南极冰盖将受到怎样的影响。