(单词翻译:单击)
Yaël: Hey Don, whatch'a doing?
嘿,Don, 你在干什么?
Don: Booking a trip to Glacier National Park. I want to go there before the glaciers disappear.
订张去冰川国家国家公园的票 。在冰川融化之前我想去那儿一趟 。
Y: What do you mean?
你是什么意思啊?
D: Scientists predict that within twenty years the park's remaining glaciers will melt away.
科学家们预测20年之内这个公园内的冰川将渐渐融化 。
Y: Why?
为什么啊?
D: Whether it's because of human industry or natural cycles, temperatures are rising. And when temperatures rise, glaciers melt.
不管是因为人类工业还是自然循环,气温都在逐渐上升 。而当气温上升时,冰川就会融化 。
Y: Forgive me for sounding insensitive, but so what? Glaciers are nice to look at, but what difference will it make if they melt?
原谅我的后知后觉,但是那又如何?冰川看起来很漂亮,但是如果它们融化又会有什么不同呢?
D: Glaciers are more than just pretty pictures. They're the main sources for many rivers that people depend on for drinking water, irrigation, and hydroelectric power.
冰川不只是壮美这么简单 。它们是许多河流的源头 。人们的饮用水、灌溉和水力电气的能源都需要依赖这些河流 。
Y: So are rivers drying up?
那么,河流会变得干涸吗?
D: Not yet, but the amount of glacier water affects a river's flow volume.
还不确定,但冰川水的量会影响河水的流量 。
The lower the flow volume the less water there is for drinking, power, and everything else people depend on rivers for.
流量越少,供人们饮用,发电以及做其他一切事的水就会越少 。
Also, greater water volume helps dilute a river's chemical content.
另外,丰富的水量可以帮助稀释河流内的化学物质 。
The less water a river has, the higher the chemical concentration, which can pollute a lake fed by the river.
一条河的水量越少,其内的化学物质浓度就会越高 。这会污染这条河注入的湖泊 。
Y: I didn't know that. But how about this...Higher temperatures mean that more water will evaporate from the oceans, which means more precipitation, including snow.
我倒不清楚那个 。但这个呢?温度越高就意味着海洋的水将会有更多被蒸发,也就是说降水量也会增多,包括雪 。
So maybe some glaciers will actually grow even though it's getting warmer.
所以说尽管气候是在变暖,但冰川的数量还可能会增加 。
D: Some scientists make that argument, but most don't buy it.
有些科学家做出了那样的论断,但大部分人并不认同 。
Sure, some glaciers are growing temporarily thanks to unusual amounts of snow, but they're the exception to the rule.
确实,一些冰川的暂时性生长是因为不寻常的降雪数量,但这只是冰川生成过程中的例外情况 。
Generally, glaciers grow when the amount of snow that melts in the summer is less than the amount that falls in the winter.
一般来说,夏天雪融化的数量少于冬天降雪的数量时才会生成冰川 。
Right now, more snow is melting than falling.
现在,融化的雪量比降雪量多 。
Y: I guess you should book that trip.
我想你该订下这趟旅程 。