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Researchers at this camp overlooking Greenland's Helheim Glacier have some bad news.

俯瞰格陵兰赫尔海姆冰川的营地研究人员带来了一些坏消息。

This glacier has retreated more than 10 kilometers or so in the last decade or so, from that position far off and to my left to where you see it today.

这条冰川在过去十多年间已退缩了10公里左右，从我左侧远处的位置退到了如今你们所见的地方。

It was here in 2018 that researchers captured this footage of large chunks of ice breaking away in a process called calving.

2018年，研究人员正是在这里拍摄到了大块冰体断裂脱落的画面，这一过程被称为裂冰作用。

Scientists like New York University's David Holland measured and observed climate change. This summer Holland saw record-shattering heat and ice melt.

纽约大学的戴维·霍兰德等科学家对气候变化进行了测量和观察。今年夏天霍兰德目睹了破纪录的高温和冰层融化现象。

Large glaciers are retreating. We can detect this with satellite, with effectively cameras in space.

大型冰川正在消退，我们可以通过卫星，也就是太空中的高效摄像头，观测到这一现象。

And we're seeing a very large signal of melt coming from this one particular glacier out in West Antarctica called Thwaites.

我们正观测到来自南极洲西部斯维斯冰川发出的非常强烈的融化信号。

NASA and the European Space Agency or ESA released the study in December

美国国家航空航天局（NASA）和欧洲航天局（ESA）于12月发布了这项研究，

showing the Greenland icesheetrapidly melting, having lost nearly four trillion metric tons between 1992 and 2018.

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