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Science 20 October 1995:
Vol. 270. no. 5235, pp. 444 - 445
DOI: 10.1126/science.270.5235.444
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Perspectives

Doug MacAyeal

The author is in the Department of Geophysical Sciences, University of Chicago, Chicago, IL 60637, USA. E-mail: drm7@midway.uchicago.edu Temperatures measured in a borehole in the Greenland ice sheet can offer clues about the past history of the Earth's surface temperature and climate. MacAyeal in his Perspective provides background and commentary to accompany a research report by Cuffey et al. which challenges previous climate histories derived from ice-core oxygen isotope data, and offers a new calibration of this "paleothermometer" based on a climate history derived from borehole temperatures.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)