by Patrick Galey

https://phys.org/news/2021-11-extreme-greenland-ice-global.html

The 3.5 trillion tonnes of Greenland’s ice sheet that has melted over the past decade has raised global sea levels by one centimetre and is heightening worldwide flood risks, new research showed on Monday.

The ice sheet atop the world’s largest island contains enough frozen water to lift oceans some six metres (20 feet) globally, and extreme melting events there have been increasing in frequency for at least 40 years.

Although it is one of the most studied places on Earth by climatologists, Monday’s research is the first to use satellite data to detect Greenland ice sheet runoff.

Writing in the journalNature Communications, researchers said that Greenland’s meltwater…