BERLIN — Scientists say a crack along a key floating ice shelf in Antarctica indicates that a vast iceberg is close to breaking off.
The process, known as calving, happens periodically but researchers are watching closely to see whether climate change is affecting the phenomenon.
Scientists at the University of Swansea in Britain said Thursday thegrew by 10.6 miles in six days.
They say the break, when it comes, could produce one of the largest icebergs ever recorded.
University of Colorado scientist Ted Scambos says the shelf appears to be breaking further back than previously recorded calvings.
Scambos adds that "This berg is telling us something has changed, and not for the better. For now, though, the ice shelf will barely notice."
Climate change is changing conditions in Antarctica at a stunning pace. In certain parts of Antarctica, scientists describe anwhere ice flowing into the sea is quietly raising the risk of coastal floods across the world. Penguins are struggling to survive on the rapidly warming continent, according to released in April. In addition, Antarctica is in what scientists say is a sign of an overheating planet.
Thus far, 2017 is poised to be the earth's second hottest year on record.