Changes in Antarctic Ice
About 98% of Antarctica is covered by the Antarctic ice sheet. It contains about 90% of the ice in the world. If all the ice on Antarctica melted, the result would be a global rise in sea level of about 60 meters (200 feet).
Of particular interest is the West Antarctic Ice Sheet. It is more unstable than the ice in the East Antarctic regions. If the West Antarctic Ice Sheet were to melt enough to start breaking apart and descend into the ocean, it would result in a rise in sea level of several meters.