听无止境：那些正在消逝的冰层
在那个太远永不落的地方，冰层正在逐渐消逝，气候的变化对我们人类到底又有多大影响呢？
Vanishing Ice In Arctic
A scientific expedition into the Arctic Ocean to examine climate change and its effects on the rest of the planet. Daniel Sieberg reports.
注：这个视频在2：15左右有一句句子出现声音错误，请大家包涵
如网速较慢，可以听音频
双击或划选（点我安装在线划词），即可查看单词的详细解释，
并收录生词进 生词本
参考文本，欢迎挑错
This is where the midnight summer sun kisses the horizon and never sets. The land of 24-hour daylight is home to some of the world's most beautiful and most endangered environments.
“There's not a whole lot of people that have been here and never a whole lot of people that have seen things like these.”
What you might expect to see and what you might not. That's a musk ox, a curious animal you'll only find here. It's scenery like this, the continues to astonish arctic veterans, like Canadian coast guard officer Bryan Gibbons who has been coming up here for 23 years. But there is something else he is not seeing, ice.
“That is definitely not the amount that used to be here, concentrations are smaller and there is a lot more open water.”
What Gibbons sees from sea level is even clearer from space. This was arctic sea ice in 1979. Here it is in 2005. This summer scientists saw the most rapid reduction in sea ice in nearly 30 years.
“Take a back up to 10 max.”
“3209.”
Troubling observations like these brought together in international team to find out how dramatic changes here affected our global climate. They are making their way through the arctic ocean--a body of water larger than the United States, traveling aboard the Canadian ice-breaker Louis S St. Laurent, because where there is less ice it’s far from gone.
“Things are happening really rapidly in the arctic.”
And scientists are trying to keep up. Geneticist John Nelson is leading the expedition, studying the water and its creatures, like this starfish, to see how climate change affects even the tiniest organisms.
“If we understand what things may be doing in the arctic because it ties to climate, you know, everyone in the globe to better understand what may be happening if things warm up.”
In fact 11 of the past 12 years have been the warmest world-wide since 1850. And, of course, warmer air impacts life both in the sea and on the land.
“Here on Devon island, but glacier behind me is slow ***. As that happen *** and migration patterns of animals could be many of light what’s reflected back into the atmosphere.”
Think of arctic ice as a mirror, reflecting some of the sun's power back into space and helping to keep the earth cool. But as ice disappears, temperatures go up, and more ice melts. We saw temperatures averaging close to 40 degrees and while glaciers like this one melt in freeze annually. A recent study found they are getting thinner and pouring more water into our oceans. This may look like a river, but it's run off from the glacier, and even a few inches added to the world's sea level could affect millions of people who live along coastlines.
“Climate change is something you can bank on.”
The question for oceanographer Eddy Carmack is how much the warming trend has been accelerated by humans. And how much is part of a natural cycle.
“If we have been here the same spot 10,000 years ago. We wouldn't be standing on sea ice, we'd probably be on a glacier. If we went back 120,000 years, we might be trailing water.”
It's our immediate future that has Carmack and others gathering hard data to better predict what lies ahead for those of us living South of the arctic circle.
Denil Seaberg, CBS news of the coast of Devon island, the arctic.
（transcribed by sophieann）
（责编：stanley）
现在有0人对本文发表评论
| Real Talk 5 | 周末班 | ￥2680 | 凯恩英语口语 |  |
| Real Talk 7 | 周末班 | ￥2680 | 凯恩英语口语 |  |
| Real Talk 4 | 周末班 | ￥2680 | 凯恩英语口语 | |
| 商务口语班 | ￥1200 | 精华日语 | |
2571
