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Scientists say the incident is evidence of rapid climate change.
The glacier section broke off the fjord called Nioghalvfjerdsfjorden, which is about 80 kilometres long and 20 kilometres wide, the National Geological Survey of Denmark and Greenland (GEUS) reported.
The glacier is at the end of the north-east Greenland ice stream, where it flows off land into the ocean.
Annual end-of-melt-season changes for the Arctic's largest ice shelf in the region are measured by optical satellite imagery.
GEUS showed area losses for the past two years each exceeded 50 square kilometres.
"We should be very concerned about what appears to be progressive disintegration at the Arctic's largest remaining ice shelf," GEUS professor Jason Box said.
"This is yet another alarm bell being rung by the climate crisis in a rapidly heating Arctic," she said.Last week, Ruth Mottram, an ice scientist at the Danish Meteorological Institute in Copenhagen, said: "Again this year, the ice sheet has lost more ice than has been added in the form of snow."
"What is thought-provoking is that if we … had seen this meltdown 30 years ago, we would have called it extreme," she said.
"So in recent years, we have become accustomed to a high meltdown."
The ice broke off the fjord called Nioghalvfjerdsfjorden, which is about 80 kilometres long and 20 kilometres wide.(Woods Hole Oceanographic Institution: Matt Osman) |
Links
- Climate change: Greenland’s biggest ice shelf breaking up as temperatures soar
- Greenland's melting ice may affect everyone's future
- Climate change: 'Unprecedented' ice loss as Greenland breaks record
- Climate change: Warmth shatters section of Greenland ice shelf
- As their home melts, Greenlanders confront the fallout of climate change
- Climate crisis: Ice sheets melting at ‘worst-case scenario’ rate
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