北极

The size of the North Polar Ice Cap in the month of September is only half the size it was a mere 50 years ago.

北极冰盖在9月份的大小，只相当于50年前的一半。1870年起，人们开始测量海平面上升的速度，现在的速度是那时的5倍。

In this permanently cold environment, the ice cap from the North Pole spread southward.

在这种持续严寒的条件下，冰帽从北极逐渐向南扩展。

Right now, the Arctic ice cap acts like a giant mirror.

现在北极的冰层就像一面大镜子

The air picks up moisture from the polar ice cap and bodies of water it may pass over.

空气从它可能经过的北极冰帽和水域吸收水分。

Some scientists are drifting their routes to study the ocean currents and the mysteries of the Arctic ice cap

有的科学家正在对其漂流路线进行研究，了解海洋洋流和北极冰帽的奥秘

You asked about the North Polar ice pack.

你问的关于北极的冰帽。

The Arctic is made up of pack ice which is melting, he said.

北极是由大块浮冰所组成，现在浮冰正在融化。」他说。

The loss of pack ice also makes sea-transport in the Arctic easier for longer periods each year.

浮冰块的减少也使得北极区的更长时期的海运变得更容易。

Polar bears living in a large southern edge of the Arctic pack ice zone.

北极熊生活在有大片浮冰的北极南部边缘地带。

Peary's ship, the Roosevelt , had been especially designed for breaking through Arctic ice packs.

皮尔的船舶，罗斯福，已经是专为冲破北极冰包。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。