British explorers in West Antarctica reported glacier movement in the region has picked up by a startling seven percent this season, a development, they said, which could lead to a significant rise in sea level.
The biggest of the glaciers, the Pine Island Glacier, is causing the most concern.
The reason does not seem to be warming in the surrounding air.
One possible culprit could be a deep ocean current that is channelled onto the continental shelf close to the mouth of the glacier. There is not much sea ice to protect it from the warm water, which seems to be undercutting the ice and lubricating its flow
Julian Scott, however, thinks there may be other forces at work as well.
Much higher up the course of the glacier there is evidence of a volcano that erupted through the ice about 2,000 years ago and the whole region could be volcanically active, releasing geothermal heat to melt the base of the ice and help its slide towards the sea.
Read more on the BBC website: ‘Antarctic glaciers surge to ocean’




Jennifer Marohasy BSc PhD has worked in industry and government. She is currently researching a novel technique for long-range weather forecasting funded by the B. Macfie Family Foundation.