11%

Almost 90% of Earth's ice mass covers Antarctica. Greenland's ice cap contains most of the remaining 10%. All totaled, approximately 11% of Earth's land mass is sitting beneath glacial ice masses. When the last ice age gripped the Earth, much more land mass saw glaciers moving over it than it sees today. At that time, sea levels around the world were lower than it is today, a difference of up to 400 feet in some places. This was during the time that glaciers covered almost one-third of the Earth's lands. Today, Bering Glacier in Alaska holds the record as the largest glacier in North America. Source: USGS.gov