The sun must be very high in the sky and it can not be seen at a latitude above 55degrees north (which includes Scotland and much of Canada) or below 55 degrees south.

太阳必须高挂在高于北纬55度的地区，包括苏格兰和加拿大的大部分以及低于南纬55度的地区。

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Zhao and Running's analysis showed that since 2000, high-latitude Northern Hemisphere ecosystems have continued to benefit from warmer temperatures and a longer growing season.

赵和阮宁的分析表明，自2000年以来，高纬度北半球生态系统继续受益于较高温度和较长生长季节。

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Back in 2008 solar scientists saw a high-latitude, reversed-polarity sunspot, suggesting the start of a new solar cycle.

在2008年的时候，太阳科学家们观测到一个位于太阳高纬地区反极性的黑子，他们认为这是新一轮太阳活动开始的标志。

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While scientists have known for some time that camels evolved in North America, with the earliest creatures dating to about 45 million years ago, they were astonished to find a species at such a high latitude.

BBC: Giant camel fossil found in Arctic

"The high latitude North Atlantic Ocean is a globally important ocean region, as it is a sink for atmospheric carbon dioxide and an area where deep water formation takes place, " Prof Achterberg observed.

BBC: Iceland volcano ash cloud triggers plankton bloom

For a number of reasons, computer models with added atmospheric carbon dioxide preferentially warm the mid-and high-latitude land areas of the northern hemisphere that are ice-free, which also enhances summer melting of the relatively shallow ice in the Arctic Ocean.

FORBES: Is Global Warming A Bipolar Disorder?