| web | https://www.theguardian.com/environment/2021/may/17/greenland-ice-sheet-on-brink-of-major-tipping-point-says-study |
| author | Damian Carrington |
| publication | The Guardian |
| date | 2021-05-17 |
| web | Niklas Boers and Martin Rypdal | PNAS | 2021-05-25 |
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