July 26, 2012
Scientists said the “unprecedented” melting took place over a larger area than has been detected in three decades of satellite observation.
Melting even occurred at Greenland’s coldest and highest place, Summit station.
The thawed ice area jumped from 40% of the ice sheet to 97% in just four days from 8 July.
“Ice cores from Summit show that melting events of this type occur about once every 150 years on average. With the last one happening in 1889, this event is right on time,” said Lora Koenig, a glaciologist from Nasa’s Goddard Space Flight Center in Maryland and a member of the research team analysing the satellite data.
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