01-29:Study Suggests Earth Is Losing Ice Faster than in Mid-1990s
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01-29:Study Suggests Earth Is Losing Ice Faster than in Mid-1990s

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New research suggests Earth's ice is melting faster today than in the 1990s.
最新研究表明,如今,地球的冰融化速度比1990年代快。
An estimated 28 trillion metric tons of ice have melted away from the world's sea ice, ice sheets and glaciers since the middle of the 1990s. The yearly melt rate is now about 57 percent faster than it was 30 years ago. Scientists reported the findings in a study published in The Cryosphere.
自1990年代中期以来,估计有28万亿公吨的冰从世界海冰,冰原和冰川融化。现在的年融化速度比30年前快了约57%。科学家在《冰冻圈》中发表的一项研究中报告了这一发现。
"It was a surprise to see such a large increase in just 30 years," said study co-author Thomas Slater. He is a glaciologist, a scientist who studies glaciers, at Leeds University in Britain.
研究合著者托马斯·斯拉特(Thomas Slater)说:“在短短30年内看到如此巨大的增长令人惊讶。”他是英国利兹大学的冰川学家,研究冰川的科学家。
Slater noted that the ice melt situation is clear to those who depend on mountain glaciers for drinking water. It is also clear to those who depend on winter sea ice to protect coastal homes from storms. But Slater noted that the world's ice melt has now started to be recognized even far from frozen areas.
斯莱特指出,对于那些依靠高山冰川来喝水的人来说,冰融化的情况显而易见。对于那些依靠冬季海冰保护沿海房屋免受暴风雨袭击的人来说,这也是显而易见的。但是斯莱特指出,世界的冰融化现在已经开始被认识,甚至距离冰冻地区还很远。
"People do recognize that, although the ice is far away, the effects of the melting will be felt by them," he said.
他说:“人们确实认识到,尽管冰距离很远,但他们仍会感受到融化的影响。”
The melting of land ice – on Antarctica, Greenland and mountain glaciers – added enough water to the ocean during the 30-year time period to raise the average worldwide sea level by 3.5 centimeters. Ice loss from mountain glaciers made up 22 percent of the yearly ice loss totals.
在南极,格陵兰和高山冰川上,陆地冰的融化在30年的时间内为海洋增加了足够的水,使全球平均海平面上升了3.5厘米。山冰川造成的冰损失占年度冰损失总量的22%。
Across the Arctic, sea ice is also shrinking to new summertime lows. Last year saw the second-lowest levels of sea ice in more than 40 years. As sea ice melts, it uncovers dark water which takes in solar radiation, rather than sending it back out of the atmosphere. This is known as Arctic amplification, which increases area temperatures even further.
在整个北极地区,海冰也正在缩小到新的夏季低点。去年,海冰水平是40年来第二低的水平。随着海冰融化,它会发现吸收太阳辐射的暗水,而不是将其送回大气中。这就是所谓的北极放大,它会进一步提高区域温度。
The worldwide atmospheric temperature has risen by about 1.1 degrees Celsius since pre-industrial times. But in the Arctic, the warming rate has been more than twice the world average in the last 30 years.
自工业化时代以来,全球大气温度已升高约1.1摄氏度。但是在北极,近30年来变暖率已超过世界平均水平的两倍。
The team of British scientists studied satellite data from 1994-2017, used site measurements and created computer models to measure the ice melt. They found that the world was losing an average of 0.8 trillion metric tons of ice per year in the 1990s. In recent years, the team estimated a loss of about 1.2 trillion metric tons each year.
英国科学家团队研究了1994年至2017年的卫星数据,使用了站点测量并创建了计算机模型来测量冰融化。他们发现,在1990年代,世界每年平均损失0.8万亿公吨的冰。近年来,研究小组估计每年损失约1.2万亿公吨。
Gabriel Wolken is a geologist with the Alaska Division of Geological and Geophysical Surveys. He said that finding even an estimated ice loss total from the world's ice formations is "a really interesting approach, and one that's actually quite needed."
加布里埃尔·沃尔肯(Gabriel Wolken)是阿拉斯加地质与地球物理调查部的地质学家。他说,即使从世界的冰层中找到估计的冰流失总量,也是“一种非常有趣的方法,实际上是非常需要的一种方法。”
Wolken was a co-author of the 2020 Arctic Report Card released in December, but was not involved with the new study.
Wolken是12月发布的2020 Arctic Report Card的合著者,但未参与新研究。
He said that in Alaska, people are very mindful of glacial ice loss. "You can see the changes with the human eye," he added.
他说,在阿拉斯加,人们非常注意冰川冰的流失。他补充说:“您可以用肉眼看到这些变化。”
I'm Jonathan Evans.
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Words in This Story
amplification – n. an act, example or product of making something louder by increasing its strength
approach – n. a way of dealing with something : a way of doing or thinking about something
glacier – n. a very large area of ice that moves slowly down a slope or valley or over a wide area of land
solar – adj. of or relating to the sun

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