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听写填空,只写填空内容,不抄全文,5个左右的句子,不用写标号,注意标点,重复单词只写一遍~

Hints:
U.S. Navy
Arctic Ocean

Ben Holt: I think there is a sense of urgency. [---1---]

That was research oceanographer Ben Holt at NASA's Jet Propulsion Laboratory in Pasadena. Earth & Sky asked Holt what's happening to Arctic ice.

Ben Holt: Well, the two major changes that have been going are the extent of the ice cover and the thickness of the ice. [---2---]

[---3---]

Ben Holt: [---4---]

What's more, in early 2008, NASA’s Ice, Cloud, and Elevation Satellite revealed that thinner, younger sea ice in the Arctic had jumped from 35% in the mid-1980s to 58%. [---5---]

Ben Holt: [---6---]

Thanks today to NASA, in celebration of the International Polar Year. We are E&S, a clear voice for science.

【视听版科学小组荣誉出品】
The Arctic is rapidly changing, faster than even people might have imagined. The extent has been decreasing steadily for the last 15 years with a particular decrease in summer of 2007. By the end of the 2007 melt season, Arctic sea ice was 39% below the 20-year average. And the thicknesses, which have been measured primarily by submarines placed by the U.S. Navy, have shown a general decrease in thickness, particularly in the last two decades. Holt said that thinning and shrinking of Arctic sea ice indicates a warmer Arctic Ocean. So the more you're heating the ocean, the more it will propagate into potentially further ice reductions, eventually leading to strong shifts in the heat balance of the polar oceans and actually the rest of the global climate.