BBC: Scientists have finally begun mapping one of the least explored regions of Antarctica - the Recovery Catchment.
The new survey data should reveal how this vast tract of ice in the east of the continent is likely to respond to a warming world.
Recovery is currently perfectly stable, but any change could have significant global impact because it contains the equivalent of 2.5-3m of sea-level rise.
The ICEGRAV project is trying to determine its vulnerabilities.
"In some senses, this huge...