Abstract
In 1968, a US drilling team succeeded in drilling through the full depth of the Ice Sheet at Byrd station, West Antarctica, following a similar success on the Greenland Ice Sheet in 1966. From the temperature profile derived from oxygen isotopic analyses of these cores, synchronized climatic change in the north and south polar regions during the glacial-interglacial cycle was confirmed.Following this success, several attempts at deep ice drilling in the Antarctic Ice Sheet have been carried out. A Japanese glaciological team succeeded in deep ice drilling at Dome Fuji, one of the summits of East Antarctica. The results of an analysis of the Dome Fuji core to a depth of 2500 m reveal global climatic and environmental changes during the last 320, 000 years. Changes in the living human environment are discussed in view of these climatic changes.
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