故事中，气候学家杰克·霍尔（丹尼斯·奎德饰演）在观察史前气候研究后指出，温室效应带来的全球暖化将会引发地球空前灾难。
Story, climate scientist Jack Hall (Dennis Quaid plays) in the observation study prehistoric climate that will lead to global warming caused by greenhouse effect the Earth unprecedented disaster. Dr.
他们认为，人类在史前对猛犸象的猎杀或对气候变迁造成了明确的影响。
They argue that mankind’s prehistoric penchant for mammoth may have had a discernible effect on climate.
他们的发现表明，在早至史前时期，定居在此的人类不得不面对在冰天雪地的格林兰岛上变化无常的恶劣气候的挑战。
Their findings indicated that earlier, pre-historic settlers also had to contend with vicious swings in climate on icy Greenland.
人口密度的上升，结合其他如气候变冷变旱的因素，使采猎为生的纳图夫人(Natufian—约公元前1万年的史前人)短缺橡果、羚羊和野草种。
Rising human population density, combined perhaps with a cooling, drying climate, left the Natufian hunter-gatherers of the region short of acorns, gazelles and wild grass seeds.
化石也可向我们提供史前的古地理和古气候情况，并可指示埋藏它们的岩石的年龄。
Fossils also provide information about the geography and the climate of prehistoric times, and indicate the age of rocks in which they are found.
皖北地区史前时期的自然环境与气候。
Part III discusses the environment and climate during the prehistoric period in Northern Anhui.
皖北地区史前时期的自然环境与气候。
Part III discusses the environment and climate during the prehistoric period in Northern Anhui.
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