Redistributing Earth's Mass

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Science  02 Aug 2002:
Vol. 297, Issue 5582, pp. 783-784
DOI: 10.1126/science.1074593

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Since the end of the last glaciation, postglacial rebound of Earth's crust has resulted in a net transfer of mass from the equatorial regions to high latitudes. This small mass transfer has been monitored for 25 years. But a report by Cox and Chao suggests that since 1998, the mass transfer has changed direction. In their Perspective, Cazenave and Nerem discuss possible mechanisms that may have caused this change.