Climate Change Across the Hemispheres

Science  05 Jan 2001:
Vol. 291, Issue 5501, pp. 58-59
DOI: 10.1126/science.10.1126/SCIENCE.1057253

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Climate records from Greenland ice cores have shown that climate has changed rapidly and drastically throughout the last glacial period on a millennial time scale. In his Perspective, Shackleton highlights the report by Blunier and Brook, who have correlated the Greenland records with an Antarctic record. There is a systematic difference in the character and timing of temperature changes in the two hemispheres, although the mechanism linking the hemispheres remains uncertain. Absolute dating is essential.