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Redistributing Earth's Mass

Since the end of the last glaciation, postglacial rebound of Earth9s 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.