ABC News Online, Posted 50 minutes ago
Giant sheets of ice totalling almost 20 square kilometres broke off an ice shelf in the Canadian Arctic last week and more could follow later this year, scientists said overnight.
Temperatures in large parts of the Arctic have risen far faster than the global average in recent decades, a development that experts say is linked to global warming.
The ice broke away from the shelf on Ward Hunt Island, a small island just off Ellesmere Island in one of the northernmost parts of Canada.
It was the largest fracture of its kind since the nearby Ayles ice shelf broke away in 2005.