Screenshot of Animation 2 (IMAGE) Geological Society of America Caption Modelled outburst flood during a deglaciation scenario routed to the outlets of the northeast Greenland ice stream (NEGIS). The animation covers 25,000 simulated years, and pauses to highlight a large ice-dammed proglacial lake during the deglaciation. https://www.geosociety.org/images/GSA/media/2020/bak20_negis.gif Credit Credit: B Keisling Usage Restrictions Credit: B Keisling License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.