Earth&Sky:植物不是全球气候变暖的救星

英语自学网

200909091212238436125.jpg

听写填空,只写填空内容,不抄全文,5-10句,不用写标号,注意标点,口语中因结巴等问题造成的重复单词只写一遍~
Steve Running: [---1---]
You’re listening to Ecologist Steve Running of the University of Montana. [---2-3---] But Dr. Running disagrees.
Steve Running:[---4---]
Dr. Running uses NASA’s Terra satellite to create daily maps of plant photosynthesis. [---5-6---]
Steve Running:[---7-8---]
ES, a clear voice for science. We’re at Es. Org.
【视听版科学小组荣誉出品】

btn_listen1974125.gif

Approximately 25 to 30 percent of that emitted CO2 is taken back up by land vegetation, another 20 to 25 percent is absorbed by the oceans, and the remaining about 40 percent stays in the atmosphere.
He studies how Earth’s trees and plants absorb carbon dioxide or CO2, a greenhouse gas known to contribute to global warming.
Some say that as Earth warms, more plants will grow and absorb more CO2, and  counteract  Earth’s warming.
We really don’t see evidence that global vegetation can be a savior for carbon emissions.
He says Earth’s northern latitudes are greening, vegetation is now growing there more abundantly than when he began this work in the early 90s.
But, Dr. Running doesn’t think plants offer a long-term solution to global warming.
The only solution is reduced emissions, because the land surface can’t absorb dramatically more than what it’s absorbing now.
And may actually we may lose some of the carbon uptake potential as large regions become water stressed with rising temperatures.