East Antarctic’s Denman Canyon is the deepest land gorge on Earth, reaching 3,500m below sea-level. It’s also filled top to bottom with ice, which US space agency (Nasa) scientists reveal in a new report has a significant vulnerability to melting. Retreating and thinning sections of the glacier suggest it is being eroded by encroaching warm ocean water. Denman is one to watch for the future. If its ice were hollowed out, it would raise the global sea surface by 1.5m.
BBC 23rd March 2020 read more »