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(Edition 38, No. 7)
Like tree rings that describe the age and history of a tree, glaciers have layers and layers of ice that hold clues about the earth's climate for the past 250,000 years.
Radio Station Personnel: You can download this file in a non-streaming RealAudio format for broadcast on your station. If you click here you will download the actual file to be saved to your hard drive. When the file downloads (in broadcast quality) make note of where on your hard drive the file is saved; most often it will be saved in a directory called TEMP. You can then call up the file and convert it to your own format.