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About the Cover


Polarbjorn (ice-strengthened ship, 50 meters long) moored to an ice floe at 81.1°N, 7°E in the marginal sea-ice zone in the Fram Strait region near Svalbaard (Norwegian Arctic). Photograph was taken at the end of June 1983. See page 489. [Vernon Squire, Scott Polar Research Institute, Cambridge, England]


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