美国科学家通过对北冰洋底部的探测发现 ,在过去的冰河期 ,北冰洋可能曾被面积巨大、厚达 1公里的冰架所覆盖。这一发现将加深人们对冰川与气候之间关系的了解。在冰河期 ,陆地上覆盖着巨大的冰川 ,存储了大量的水 ,它们融化之后导致全球海平面上升了1 0 0米之多。但陆地河川延 US scientists through the bottom of the Arctic exploration found that in the past glacial period, the Arctic Ocean may have been covered by a huge, 1 km thick ice shelves. This finding will deepen the understanding of the relationship between glaciers and climate. During the glacial phase, the land was covered with huge glaciers that stored large amounts of water, which, after melting, led to a global increase in sea level of more than 100 meters. But the land river extension