For example, as the great ice sheets that covered North America during the last ice age steadily melted away, huge volumes of water flowed from them.
例如，随着覆盖北美的大冰原在最后一个冰河时代逐渐融化，大量的水从冰原流出。
If you replenish the ice sheets and frozen waters of the high latitudes, more light will be reflected back into space, so reducing the warming of the oceans and atmosphere.
如果高纬度地区的冰原和冻结的水得到补充，更多的光将被反射回太空，从而减缓海洋和大气的变暖。
Evidence that an ice-free corridor between two ice sheets developed when the continental ice first began to melt came primarily from radiocarbon dating.
当大陆上的冰开始融化时，两块冰原之间形成了一条无冰走廊，这一证据主要来自放射性碳测年法。
The ice sheets collapsed because the climate warmed quickly.
冰盖崩溃是因为气候暖化迅速。
A relic of the last ice Age, this is one of three great ice sheets in the world.
格陵兰冰盖是上个冰河世纪的遗迹，也是世界三大冰盖之一。
Measurements taken over the south pole reflect changes in the mass of the Antarctic ice sheets.
南极地区的数据反映了南极冰盖质量的变化。
We need to do a lot more work to build better models of how ice sheets behave in the real world.
我们需要做更多的工作，以建立更好的模型模拟现实世界冰原的活动。
Perhaps the greatest geological hazards during climate change will be the result of melting ice sheets.
气候变化引发的最严重地质灾害，可能会是冰原融化。
Scientists think the Mars glaciers may have been left as remnants when regional ice sheets retreated.
科学家们认为火星冰河是区域性冰原撤退后留下的残余。
The presence of ice on Mars is not a surprise, although the purity and extent of the buried ice sheets is.
在火星上存在冰这并不足以令人惊讶，令人惊讶的是冰的纯度之高和埋藏冰原的范围之广。
For the response of the ice sheets to a still warmer world, older periods in geologic time offer parallels.
对于冰川对变暖世界的回应，以前的地质时期也出现过相似的状况。
The image here illustrates how these pockets and streams of warm meltwater permeate glaciers and ice sheets.
这幅图展示了冰川融水是如何渗透冰川以及冰原的。
Rising temperatures are melting glaciers and ice sheets, as well as warming the oceans directly, which causes them to expand.
环境温度的上升正在逐步融化冰川和两极的冰架，同时它又直接地加热了海洋，使海洋膨胀，海平面升高。
It's evident that the ice sheets have gone through multiple stages of growth and retreat over the course of the Quaternary.
很明显，在第四纪，冰层已经历过生长和消融的多个阶段。
Argument exists over whether slowdowns are primarily wind-driven, or could be caused by an influx of fresh water from melting ice sheets.
围绕着环流的减速主要是由风力造成的，还是由冰盖融化后大量淡水的涌入引起的，出现了两种不同的观点。
We now know that, as ice sheets collapsed, sea levels rose 20 metres - enough to drown much of eastern England - in less than 400 years.
我们现在知道，在不到400年的时间里，冰盖崩溃、海平面上升20米——足以淹没英格兰东部大部地区。
If either of these ice sheets were to melt significantly, sea levels could rise by an order of meters (many feet), drowning coastal cities.
如果这两大区域的冰川大量融化，海平面会大幅上升(许多英尺)并淹没沿岸城市。
They understand that the greatest and least predictable effect will be the melting of the polar-ice sheets and the consequent rise in sea level.
他们也明白，最大和最不可预测的影响将是极地冰盖融化和随之而来的海平面上升。
The ice sheets at the poles can disintegrate rapidly once they start melting, and sea-level rises of a few meters per century are not unheard of.
地球两极的大冰原一旦开始融化就会快速地分解，而海平面每世纪升高几米也不是危言耸听。
The project is intended to precisely measure the changing thicknesses of sea ice and ice sheets to monitor how they're responding to global warming.
该项目的目的是精准的测量出海冰厚度及冰架的变化情况，用以检测全球变暖对它们的影响。
Satellite imagery reveals rapidly melting ice sheets in the Arctic, a region which is heating up three times more quickly than the rest of the Earth.
从卫星影像中可以发现，北极地区冰盖迅速融化，其升温速度比地球其它地区要快2倍(是地球其它地区的3倍)。
Ice flows more readily as it warms, so a warming climate can increase ice flows on ice sheets much faster than previously thought, said the study authors.
该研究的作者说，由于变暖，冰流动更加流畅，因此，变暖的气候可使冰层上冰块流动速度比以前想象的要快得多。
Such a rise would probably lead to fast-melting ice sheets, rising sea levels, drought, disease and collapsing agriculture in poor countries, and mass migration.
这种上升可能会导致冰层的快速融化、海平面上升、干旱、疾病和穷国农业崩溃，以及大规模移民。
The Earth-observation programme will receive around $2 billion to improve the forecasting of climate change and monitor the Earth’s carbon cycle and its ice sheets.
地球观测项目将获得20亿美元的资金，以用于预测气候变化和监测地球的碳循环和冰原。
The same forces are at work on the planet's giant continental ice sheets on Greenland and Antarctica, which together hold enough ice to raise sea levels by 60 metres.
地球上格陵兰和南极巨大的陆地冰盖上，同样的力量在起着作用。这两处冰盖控制的冰足以提高海平面60米。
Human effects on the climate notwithstanding, the cycle will continue to turn, the interglacial will some day come to an end - and the ice sheets will descend again.
人类对于气候有一定影响，但循环将会继续下去，总有一天间冰期将会结束，到那时冰层又将卷土重来。
Human effects on the climate notwithstanding, the cycle will continue to turn, the interglacial will some day come to an end - and the ice sheets will descend again.
人类对于气候有一定影响，但循环将会继续下去，总有一天间冰期将会结束，到那时冰层又将卷土重来。
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