Scientists take years to study ice core data.

科学家们花了数年时间来研究冰芯数据。

So, ice cores from Antarctica are this unique scientific resource.

来自南极洲的冰芯是独特的科学资源。

The scientists know this by looking into ice core data.

科学家们通过调查冰芯数据了解到这样的事实。

I recently stopped by to visit Dr. Jeffrey Severinghaus, who studies ice cores.

我最近顺道拜访了研究冰核的杰弗里·塞弗林豪斯博士。

Where are you collecting these ice cores?

你在哪里收集这些冰核？

So this is what a typical ice core sample looks like.

这就是典型的冰芯样本的样子。

People are more familiar with things like tree rings and ice cores or ocean sediment cores.

人们更熟悉树木年轮、冰核或海洋沉积物核等东西。

The mission on Grand Combin shows the major difficulty scientists face today in collecting ice cores.

大孔班山的任务表明了科学家们目前在收集冰芯时面临的主要困难。

Even the oldest ice core that has been storing information about Earth's climate for 1.5 million years.

甚至连储存著地球 150 万年气候资讯的最古老冰芯也不能幸免。

Lonnie Thompson said he plans to increase his ice core storage facilities at Ohio State University.

郎尼·汤姆森说，他计划在俄亥俄州立大学增加冰芯存储设施。

This finding is not the first time ice cores have revealed signs of human pollution from the past.

这一发现并不是冰芯第一次揭示出过去人类污染的迹象。

Information from ice cores has been used to estimate temperatures in Greenland from the year 1000 to 2011.

来自冰芯的信息被用来估计格陵兰岛从1000年到2011年的温度。

Much easier than drilling a deep ice core which is 3,000 meters and costs 50 million dollars.

比钻探 3000 米深、成本 5000 万美元的冰芯容易得多。

After the impact, the infant planet's silicate ice core merged with Jupiter's, causing Jupiter's core to become diluted.

撞击后，新生行星的硅酸盐冰核与木星的硅酸盐冰核融合，导致木星的核心变得稀疏。

That team of scientists included U.S.-based ice core experts Lonnie Thompson and Ellen Mosley-Thompson, who are husband and wife.

这组科学家包括来自美国的冰芯专家郎尼·汤姆森和艾伦·莫斯利-汤姆森夫妇。

But such views would be dashed if the comet's ice core disintegrates from the sun's intense rays and gravitational force.

但如果彗星冰核因强烈阳光和重力而分解，那么这些景观便会消失殆尽。

In a new study, researchers used lava flow records, along with sedimentary and Antarctic ice core data, to examine that event.

在一项新研究中，研究人员用熔岩流记录以及沉积物和南极冰芯数据来研究这一事件。

Some ice cores have annual layers just like trees do, you know, how you can count tree rings?

有些冰核有一年生的层，就像树一样，你知道，你是怎么数年轮的？

It's believed that one such planet was 10 times the mass of Earth, and it was mainly a silicate ice core.

据信其中一颗行星的质量是地球的10倍，它主要是硅酸盐冰核。

Until recently, Greenland's ice cores had not shown a clear sign of warming on the remotest north-central part of the island.

直到最近，格陵兰岛最中北部的冰芯还没有显示出明显的变暖迹象。