Abstract
The great ice sheets in Antarctica and Greenland are vast deposits of frozen freshwaterthat contain enough to raise sea level by approximately 70 m if they were to completelymelt. Because of the potentially catastrophic impact that ice sheets can have, it isimportant that we understand how ice sheets have responded to past climate changes andwill respond to present climate changes, so that we can predict the effect global warmingwill have on sea level rise in the coming centuries. The purpose of this article is tointroduce students to some of the basic concepts of glaciology, the physical variables thatcontrol the evolution of ice sheets, and how changes in these parameters may affect thelong-term evolution of ice sheets.
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