此前,科学家曾怀疑,可能是由于14世纪时气候正逐渐进入了一个小的冰川时期,四级组建缩短,而海洋开始结冰,从而对于连接冰岛和古挪威的海上之路造成了阻碍。
The study, by scientists in the U.S. and Britain, added the previously unknown 12th century temperature plunge as a possible trigger for the colonies' demise.
这份有英国和美国科学家联合参与的研究发现了之前未曾了解到因素,12世纪时的气温骤降或是诱发维京人从此地消失。
Vikings arrived in Greenland in the 980s, during a warm period like the present.
维京人在公园980年时迁徙到了格陵兰岛,当时的气温比较温暖,就如同现在这样。
Dr D'Andrea said: 'You have an interval when the summers are long and balmy and you build up the size of your farm, and then suddenly year after year, you go into this cooling trend, and the summers are getting shorter and colder and you can't make as much hay.'
迪安德瑞亚博士说:“在一开始的时候,夏季的时间较长,气候温和,这有利于发展和扩大农业,不过突然之间,夏季的时间越来越短,气温也越来越低,这将影响到对粮草的积累产生负面作用。”
The study, published in the U.S. journal Proceedings of the National Academy of Sciences, also traced even earlier swings in the climate to the rise and fall of pre-historic peoples on Greenland starting with the Saqqaq culture, which thrived from about 4,500 years ago to 2,800 years ago.
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