PerspectiveClimate Change

The Greenland Ice Sheet Reacts

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Science  21 Jul 2000:
Vol. 289, Issue 5478, pp. 404-405
DOI: 10.1126/science.289.5478.404

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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.