It's also the only Antarctic station built entirely during the International Polar Year.

该站也是唯一一座在国际地极年期间建成的南极科学考察站。

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The Canadian Arctic is a vast, treeless polar desert that's covered with snow for most of the year.

加拿大的北极是一个广阔的、没有树木的极地沙漠，一年中大部分时间都被雪覆盖着。

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Polar bears were listed as threatened last year, the first time any species had been given protection primarily because of climate change.

北极熊在去年被列进濒临物种名单，此为首例因气候变迁而引起的保护行为。

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The minister's visit to Antarctica came ahead of next week's launch of International Polar Year (IPY).

BBC: NEWS | Science/Nature | Poles 'vital for climate science'

This month is the launch of International Polar Year (IPY) -- an ambitious scientific effort involving over 200 projects -- which will study exactly these types of geological changes.

CNN: Antarctica: On thin ice

In a project within the International Polar Year called Igliniit, Inuit hunters recorded their observations of wildlife, sea ice, weather or other environmental phenomena as they travelled across the land.

UNESCO: Weathering uncertainty in the Arctic