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Earlier this year, British explorer Hadow and his team trekked for three months across the frozen Arctic Ocean, taking measurements and recording observations about the ice.
出自-2016年6月听力原文
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Way up north in the Canadian Arctic, seabirds are picking up dangerous chemicals in the ocean and delivering them to ponds near where the birds live.
出自-2016年12月听力原文
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Some 10,000 pairs of the birds, called fulmars, a kind of Arctic seabird, make their nests on Devon Island, north at the Arctic circle.
出自-2016年12月听力原文
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Previously, scientists noticed pollutants arriving in the Arctic with the wind.
出自-2016年12月听力原文
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Brittleness remains a problem when building steel structures in cold conditions, such as oil rigs in the Arctic.
2019年6月六级真题（第三套）阅读 Section A
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But this year, the Arctic is experiencing much higher temperatures.
2018年12月六级真题（第二套）听力 Section B
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Cambridge scientist Peter Wadhams who's been measuring and monitoring the Arctic since 1971, says the decline is irreversible.
2016年6月六级真题（第一套）听力 Section C
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During the Arctic winter from October to March, the average temperature in the frozen north typically hovers around minus 20degrees Celsius.
2018年12月六级真题（第二套）听力 Section B
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Earlier this year, British explorer Hadow and his team trekked for three months across the frozen Arctic Ocean, taking measurements and recording observations about the ice.
2016年6月六级真题（第一套）听力 Section C
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Indeed, sea ice cover in the Arctic is melting faster than expected.
2018年12月六级真题（第二套）听力 Section B
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Martin Sommerkorn runs the Arctic program for the environmental charity the World wildlife Fund.
2016年6月六级真题（第一套）听力 Section C
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The Arctic sea ice holds a central position in the Earth's climate system and it's deteriorating faster than expected.
2016年6月六级真题（第一套）听力 Section C
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This is troubling as climbing Arctic temperatures combined with rapid sea ice loss are creating a new type of climate feedback loop, which could accelerate Arctic warming.
2018年12月六级真题（第二套）听力 Section B
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Weather conditions that drive this bizarre temperature surge have visited the Arctic before.
2018年12月六级真题（第二套）听力 Section B
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We're looking at roughly 80 percent loss of ice cover on the Arctic Ocean in 10 years, roughly 10 years, and 100 percent loss in nearly 20 years.
2016年6月六级真题（第一套）听力 Section C
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without those masses of cooling sea ice, warm air brought to the Arctic can penetrate further inland than it ever did before.
2018年12月六级真题（第二套）听力 Section B