polar-cap ice

基本解释

Little has been said in the media about climate change and health - usually what we hear about is polar bears, loss of the ice cap, dying species and flood risks.
媒体总是把注意力放在北极熊、冰盖融化、濒危物种和洪水的危险上，极少提及气候变化对人类健康的影响。
Al Gore, former US vice president, told the UN climate conference Monday that new data suggests the Arctic polar ice cap may disappear in the summertime as soon as 5-7 years from now.
美国前副总统戈尔14日在联合国气候大会上说，新数据表明，从现在起5-7年内，北极冰帽可能将在夏天消失。
www.chinadaily.com.cn
The swirling troughs of Mars's north polar ice cap are seen above in a recently released picture from the no-longer-operating Mars Global Surveyor orbiter, whose mission was terminated in 2007.
不再运行的火星环球探测轨道飞行器（2007年终止使命）发回的最新照片上可见火星北极冰帽旋转的低谷…