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Science 21 July 2000:
Vol. 289. no. 5478, pp. 404 - 405
DOI: 10.1126/science.289.5478.404
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Perspectives

Also see the archival list of Science's Compass: Enhanced Perspectives

CLIMATE CHANGE:
Enhanced: The Greenland Ice Sheet Reacts

Dorthe Dahl-Jensen

The Greenland Ice Sheet holds a substantial part of Earth's fresh water, and melting of the sheet contributes to sea level rise. Dahl-Jensen discusses the reports by Krabill et al. and Thomas et al., which shed light on short- and long-term surface elevation changes of the ice sheet. Low-altitude areas are melting, but high-altitude areas show no net reduction over both the short and the long term.

The author is at the Niels Bohr Institute for Astronomy, Physics and Geophysics, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark. E-mail: ddj{at}gfy.ku.dk

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