What is needed for rapid ice loss, is a well mixed system. (neven1.typepad.com)
If one part of an ice shelf starts to thin, it can trigger rapid ice losses in other regions as much as 900 kilometres away — contributing to sea level rise (newscientist.com)
At this stage, corresponding to a peak warming of 2 ° to 3 °C, both the West Antarctic Ice Sheet and the Wilkes Basin are experiencing rapid ice loss due to their instability, which manifests itself in a visible threshold in sea - level rise (see Image). (climatestate.com)