# Thwaites Glacier could contribute twice as much sea-level rise as previously projected

> **Open Intelligence Dossier** · First detected: 2026-10-14 18:20 UTC · Category: Science

## Executive Summary
New scientific modeling indicates that the Thwaites Glacier poses twice the previously projected sea-level rise threat.

## Intelligence Brief
Recent scientific findings indicate that the Thwaites Glacier could contribute twice as much sea-level rise as previously projected, reaching a numerical projection of 30 mm by the year 2100. This development stems from new modeling data showing that seawater is seeping underneath the glacier, exacerbating ice loss dynamics. Outlets covering these findings include Phys.org, Gizmodo, Softonic, Martin Cid Magazine, and the British Antarctic Survey. Coverage across these platforms emphasizes the specific physical mechanism of seawater seepage and the resulting doubling of the 2100 sea-level forecast for the formation commonly known as the Doomsday Glacier. Additional reports from the British Antarctic Survey specify that the Thwaites Glacier will continue losing ice even in a scenario where global oceans cool down. This persistent vulnerability highlights the ongoing nature of the threat regardless of potential future ocean temperature stabilization.


The participating media organizations have detailed how this new model alters scientific expectations surrounding the rate and scale of ice sheet degradation in Antarctica. Coverage does not yet specify exact timelines for institutional policy responses or additional mitigation strategies beyond the published modeling data released by the research teams. Background context provided in the coverage frames the Thwaites Glacier as a critical focal point for global climate science due to its massive volume and potential impact on worldwide coastal regions. The descriptor Doomsday Glacier appears in reporting to emphasize the scale of the potential hazard associated with its ongoing destabilization. Readers following this trend are informed that previous projections underestimated the contribution of sub-glacial seawater intrusion. The current body of articles focuses primarily on the mechanics of seawater seepage underneath the ice sheet and the revised numerical forecasts generated by the updated scientific models.


Looking ahead, ongoing reporting will likely monitor further scientific publications and updates from organizations such as the British Antarctic Survey regarding the Doomsday Glacier. Coverage does not currently specify what subsequent models will test or when further observational data from the Antarctic region will be made public. Observers and researchers will continue tracking whether additional glaciers exhibit similar vulnerabilities to sub-surface seawater seepage. Stakeholders await further peer-reviewed assessments to understand the full implications of the revised 30 mm contribution by 2100 for global sea-level rise planning and coastal infrastructure management.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| Softonic | Thwaites Glacier warning doubles: new model sees 30 mm by 2100 | [Source Link](https://news.google.com/rss/articles/CBMimgFBVV95cUxNbEhpZ2lvYV9WNk1oeDRtWV9HVVJXWHFKLWU1WVVIeTl3bzkwSmpTcmVDMk14cVZfSXNfT2dBTU9DM0ZqTTBpUEdrUXJEd3NHRVNXaE96SVdsTjVGSWdLejIya192T2pISWRDa3hjQ05RazA0eWd0bXQwdWdMbVdqd0FMdkEyWmhoMUg5Wko3WmMwZkZCYmFiY29R?oc=5) |
| Martin Cid Magazine | Seawater seeping under Thwaites Glacier doubles its 2100 sea-level forecast | [Source Link](https://news.google.com/rss/articles/CBMimgFBVV95cUxNNDYtSGlkSWRVRXVvVFAxLVR5MDFDanZuRXBnVmRCX1ZaZm5QU2Q1YkVRdHBZbUprNEJKQVB0b2VvSFVwS1pORUVrYjVUY05CZ05TN3BTUzByMDZXNE1CcmRMM0lnTWJ1aE44S2VkN3RYYW1vc2NlQWRmdS1kUy1DZTdERHBDOGViazRmclZMSWxiSWxIRnNUdVBB?oc=5) |
| British Antarctic Survey (BAS) | Thwaites Glacier will keep losing ice even if oceans cool | [Source Link](https://news.google.com/rss/articles/CBMijgFBVV95cUxObkxOLUtfejZTUjFINnhwZnEyc2Vub0VpcDY4QzRfcFRIbk1selVLWDExSWRTX0pEN3hJRnl6d2cwQi1tblFPWGJxTjAyLVExcHFtNXc4TDFJWUl3dVh5RWplenE2YlJ4QnVuWTZrdEJycC1uQWUxc29UckRObzE3TU9Pb0dSdFNMNzNGeGVB?oc=5) |
| Gizmodo | Ocean Water Is Seeping Under the Doomsday Glacier—and Its Sea-Level Threat Just Doubled | [Source Link](https://news.google.com/rss/articles/CBMiugFBVV95cUxQR205TEpWa3BhYzZpb0xPcTZ3RGV5UUJvSUVWZHF4bDNmdnZCcmZEU05yU05hS3RuU0JMUE1zemg1VUhJeGdyRmFyRlA1Zmc1LS1sOGg3MGdsWTZ3S3dhOWJLVHlFRWo1cjZYR0xtT3RJNkdUV1NBeWRYbEoyQl9rcFhqQ1ZPaEZzZlVUZmo3cXBWcUtCN2w3MU9mQzJNY0pWbkpKMmltVDhmeVViaGlEbFpFYUtiZmFPSGc?oc=5) |
| Phys.org | Thwaites Glacier could contribute twice as much sea-level rise as previously projected | [Source Link](https://news.google.com/rss/articles/CBMigwFBVV95cUxOMmdWQ0UzVjA2YmFwdXJuM3FuYlgxYU1GNnMySHBVUHVoUnluWFFUb3dMekZuODhfVTFIVDlURXh4SHJyVkdtNlVNWHBpUkVmWkkxYWU2a3FMeWVxb1AtTEV2VDB5NWRvcW9hdl9OMUFJcnZFbkJrU1Z1anFtcEZ3dmdyOA?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-10-14/thwaites-glacier-could-contribute-twice-as-much-sea-level-rise-as-previously*