(提示：如果您无法正常打开上面的节目，主要原因可能是您没有安装Windows Media Player和Realplayer 。如果您还没有安装，请点击此处下载安装)
听力文稿 ( Transcript )
Disappearing alpine glaciers are an ominous sign of global warming
Some are remnats of the last ice age.And alpine glaciers are quickly disapearing. There is hard strong evidence that europe's rising temperatures are melting away austria's gold berg glacier. Records here date back to the 19th century and documents drastic exchanges in the landscape. And as recently as 1979,this valley was filled by the glacier soild ice 300 feet thick.Now bare rock and small rivers are evidences of the glacier's retreat/. Scientist Wolfgang Schoener studys the change here. He pounded this pole 18 feet one month ago. Now a third of it exposed.He brought his young son to see what he describles as the tangible effect of global warming.
If you are speaking about aspecst of climate change. It is really hard to show something where you can see it .The glaciers are the most important possibility to show it that something happens.
The melting of polar ice shelves has scientist worring about rising sea levels.but as Europe's glaciers vanish, the primary concerns the flow of the river throughout the continent.Glaciers hold the precipitation in the winter and slowly release it during the hot dry summer.Shrinking glaciers could exaggerate/seasonal flooding and drought/ And icy lake sits at the foot of the global glacier.It is the source for small river that eventually ends up as part of the Danubel. Schoener’'s team collects data to calculate how much of the glaciers flowing down stream.Millions of gallons a day during the summer. And this is a small glacier,higher of the mountain where not long ago the ice was 30 feet thick.Run off has carved the cavernous tunnel/this tunnel has things collapsed and a new one has formed nearby.
So the glaciers are losing one miles from one year to the next. Then rhey will be,will go smaller and small one but for this glacier I think it gotta happen the lower part will completely disappear.As long as gold berg glaciers survives Schoener and his team will continue to gather data hoping for insight into what raising temperature might mean for Europe and the rest of the world.
页面导航： 
