【Earth&Sky】海冰消融及其影响_英语听力练习mp3下载-科学-沪江听力酷

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【Earth&Sky】海冰消融及其影响

听力简介：

听写填空,只写填空内容,不抄全文,4个单词/词组+1个句子,不用写标号~

Sea ice really does have quite a few impacts, both on the rest of the climate system and also on [----1----].

You're listening to Claire Parkinson, project scientist for NASA's Aqua satellite mission. Among other things, this mission measures [----2----] sea ice at Earth's poles.

Sea ice is ice that forms off in the freezing of seawater. It's a very common feature in the polar regions. Sea ice is really quite an effective [----3----] between the ocean and the atmosphere. And also it's white, and being white means that the solar [----4----] that comes down and strikes it largely gets reflected away and goes back to space.

[----5----] where the heat can't escape as quickly to the atmosphere. Dr. Parkinson spoke of the loss of sea ice cover in the Arctic.

We can see a clear long-term trend, which is a trend toward lesser sea ice coverage. And it turns out that it's overall about 3 to 4% per decade reduced sea ice coverage since the late 1970s.

That means that, every year since the 1970s, we've lost an area of Arctic sea ice about the size of Switzerland. Many scientists now suggest we'll see an ice-free Arctic in the summertime in this century – although some ice will still return each winter.