Because of this loop, which is promoted by warmer temperatures in winter and spring, well, it looks like the tundra may be turning into shrub land.

由于冬春两季气温的上升加剧了这样的循环，因此，苔原可能正在向灌木林地转变。

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Meanwhile, the land surface temperatures measured by MODIS in eastern Canada, Greenland, northern Africa, and the Middle east were much higher this winter than they were in other years this decade.

中分辨率成像光谱仪同时也监测到加拿大东部，格陵兰地区，非洲北部和中东地区的地表温度都比这十年来其他年份高得多。

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They worked on the land with much difficulty and were beset by a devastating plague in which half of the Pilgrim died in the long winter of 1620.

1620年那个寒冷而漫长的冬天，他们在这块土地上费尽千辛万苦地劳作着，困难重重，还遭遇了一场灾难性的瘟疫，一半人在这场瘟疫中死去。

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Freestyle snowmobiler Caleb Moore, attempting a backflip with his snowmobile at the Winter X Games in Aspen, Colorado, couldn't rotate his machine enough to land the maneuver.

CNN: STORY HIGHLIGHTS

The railway is a Soviet triumph of man over nature, built in an inhospitable land of extreme winter cold and mosquito-cloud filled summers.

BBC: A train to nowhere in Siberia

The 50-year-old farmer and businessman left the dead animals on land at Welton of Creuchies farm in Alyth over a five month spell last winter.

BBC: Alyth farmer John Ferguson banned from keeping animals