Comet Enthusiast

Thinning ice in Antarctica is currently contributing nearly 10 per cent of global sea level rise according to scientists from the British Antarctic Survey (BAS), Lamont-Doherty Earth Observatory (LDEO) and the National Oceanography Centre in the journal Nature Geoscience. The international team has iidentified Pine Island Glacier (PIG) as a major source. As part of a series of investigations to better understand the impact of melting ice on sea level an exciting new discovery has been made. Using Autosub (an autonomous underwater vehicle) to dive deep and travel far beneath the pine Island Glacier's floating ice shelf, scientists captured ocean and sea-floor measurements, which revealed a 300 meter high ridge on the sea floor.