These pages cover information on the West Antarctic Ice Sheet. This is the part of Antarctica west of the Transantarctic Mountains. It is characterised by a bed that is largely below sea level. The two largest ice streams draining the West Antarctic Ice Sheet are Pine Island Glacier and Thwaites Glacier.

Other relevant articles:

• What is the ice volume of Thwaites Glacier?
• The changing Thwaites Glacier
• What is the global volume of land ice and how is it changing?
• Antarctica’s contribution to global sea level rise
• Choosing the future of Antarctica
• Mass balance of Antarctica from 2012-2017
• Is the West Antarctic Ice Sheet collapsing?