一块面积达到100平方英里的浮冰岛已经从格陵兰两大冰川之一崩离，用科学家的话来说，这块浮冰岛的崩落是近50年北极同类事件中最大的一个。
An ice island with an area of 100 square miles has broken off from one of Greenland's two main glaciers in what scientists say is the biggest such event in the Arctic in nearly 50 years.
近几十年来，北极气温的上升速度是世界其他地区的两倍，这种现象被称为极地放大效应 。
Temperatures in the Arctic have risen twice as fast as the rest of the world in recent decades, a phenomena known as Arctic amplification.
根据美国地质勘查局估算，包括阿拉斯加海岸在内的北极海底蕴藏着全球未开采油气资源的22%，这些资源如今正因冰盖的融化离人们越来越近。
That has opened more access to areas holding about 22 percent of the world's untapped oil and natural gas, including deposits off Alaska, according to U.S. Geological Survey estimates.
专家说，短短的5年，北极的甲烷排放量增加近三分之一，急剧上升的温度乃罪魁祸首。
Experts say methane emissions from the Arctic have risen by almost one-third in just five years, and that sharply rising temperatures are to blame.
从近非洲西海岸的西班牙领土加那利群岛出发，这对旅人航行至加勒比海的圣巴特岛，然后在去年八月份前往北极。
After starting from the Canary Islands, Spanish territory near Africa's west coast, the pair sailed to st Bart's in the Caribbean before moving into the Arctic last August.
研究预测，未来数十年北极圈内近半数地表植被的种类将会改变，绿色植被范围和林木覆盖率将显著增长。
We predict that at least half of vegetated areas will shift to a different physiognomic class, and woody cover will increase by as much as 52%.
在太平洋区域，灰鲸的历史数量近10万，动物的沉积物堆放到北极，相当于今天的12育空河。
In the Pacific, historic populations of grey whales numbering near 100,000 animals once raised as much sediment in the Arctic as is dumped today by the equivalent of 12 Yukon Rivers.
在太平洋区域，灰鲸的历史数量近10万，动物的沉积物堆放到北极，相当于今天的12育空河。
In the Pacific, historic populations of grey whales numbering near 100,000 animals once raised as much sediment in the Arctic as is dumped today by the equivalent of 12 Yukon Rivers.
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