As one might expect, the losses in both ice sheets ultimately stem from a speedup of the ice streams and outlet glaciers that convey mass to the oceans.

• 大家可能猜得到，根本原因在于冰原上加速流动的冰流与注出冰河把冰带到海里，这些新加入海水的冰体额外佔去水中的空间，于是造成海平面的上升。