BAS releases new footage of Larsen C crack

The British Antarctic Survey (BAS), a research group which is monitoring a miles-long crack in the Larsen C Ice Shelf on the Antarctic Peninsula, has warned that a massive block of ice around a quarter the size of Wales could break away anytime into the Weddell Sea.

The crack has already extended 175 kilometers in length through the Larsen C Ice Shelf on the eastern side of the peninsula, and the chunk of ice will break away if it propagates merely 20 kilometers more.

The BAS released new footage of the crack that was captured from a helicopter while scientists were recovering instrumentation that they had placed on the ice shelf to collect data.

Dr. Paul Holland from the research group said iceberg calving is quite a normal part of the glaciers’ life cycle, but it make Larsen C unstable.

Speaking on the topic, Dr. Holland said, “It is also possible that this iceberg calving will leave Larsen C in an unstable configuration. If that happens, further iceberg calving could cause a retreat of Larsen C. We won't be able to tell whether Larsen C is unstable until the iceberg has calved…”

Meanwhile NASA has released a satellite-captured video showing a 2-mile-long iceberg breaking off the Pine Island Glacier in Antarctica. Many scientists blame global warming for the increasing incidents of calving of icebergs in Antarctica.