Articles | Volume 14, issue 12
Research article
01 Dec 2020
Research article |  | 01 Dec 2020

Large and irreversible future decline of the Greenland ice sheet

Jonathan M. Gregory, Steven E. George, and Robin S. Smith

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Cited articles

Aschwanden, A., Fahnestock, M. A., Truffer, M., Brinkerhoff, D. J., Hock, R., Khroulev, C., Mottram, R., and Khan, S. A.: Contribution of the Greenland ice sheet to sea level over the next millennium, Sci. Adv., 5, eaav9396,, 2019. a, b, c, d, e, f, g
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Bamber, J. L., Westaway, R. M., Marzeion, B., and Wouter, B.: The land ice contribution to sea level during the satellite era, Environ. Res. Lett., 13, 063008,, 2018. a
Short summary
Melting of the Greenland ice sheet as a consequence of global warming could raise global-mean sea level by up to 7 m. We have studied this using a newly developed computer model. With recent climate maintained, sea level would rise by 0.5–2.5 m over many millennia due to Greenland ice loss: the warmer the climate, the greater the sea level rise. Beyond about 3.5 m it would become partially irreversible. In order to avoid this outcome, anthropogenic climate change must be reversed soon enough.