Rain fell at the highest point on the Greenland ice sheet last week for the first time on record, scientists said.
It is another worrying sign of warming for the ice sheet already melting at an increasing rate.
"That's not a healthy sign for an ice sheet," said Indran iDas, a glaciologist with Columbia University's Lamont-Doherty Earth Observatory.
The rain fell for several hours at the ice sheet's 3,216-metre summit on 14 August, where temperatures remained above freezing for around nine hours, scientists at the US National Snow and Ice Data Center said.
https://www.rte.ie/news/world/2021/0820/1242038-greenland-ice-sheet/
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