# Around 252 million years ago, volcanoes across what is now Siberia erupted repeatedly for more than a million years, releasing perhaps 100,000 billion tonnes of carbon dioxide and helping wipe out roughly 90 per cent of marine species in the deadliest mas

> **Open Intelligence Dossier** · First detected: 2026-07-13 17:07 UTC · Category: Science

## Executive Summary
New research links Siberian volcanic fury 252 Myr ago to massive CO₂ release and the Permian marine die‑off, echoing today’s climate alarms.

## Intelligence Brief
Scientists have traced the Permian‑Triassic “Great Dying” to a prolonged episode of volcanism across present‑day Siberia that began around 252 million years ago. The eruptions lasted more than a million years and may have emitted roughly 100,000 billion tonnes of carbon dioxide, coinciding with the loss of about 90 percent of marine species.


Coverage from Gizmodo, resilience.org, The Economic Times, Open Access Government, ScienceDaily, Stanford Doerr School of Sustainability and Space Daily emphasizes that the study resolves a long‑standing mystery, identifies metabolic vulnerability as a key factor, and warns that similar climate pressures are observable in today’s oceans. The Economic Times notes detection of extinction‑type signals in modern marine environments.


Future reports are expected to track how contemporary ocean data align with the ancient signatures and to explore the metabolic mechanisms highlighted by the research. Observers will watch for policy discussions linking past CO₂ spikes to current climate‑change mitigation efforts.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| Gizmodo | Scientists Finally Solved the Mystery of Earth’s ‘Great Dying.’ It’s Bad News for Our Future | [Source Link](https://news.google.com/rss/articles/CBMiugFBVV95cUxNSEluMmZDazRPaVRlLXRvcEpNcWpUcXl2VGdOX2pRNnFJRzA4c3Y1OVZjTnVfSDJFVEktQlNVWTdXcDNuVDB5UnUyUXI0M2dXdEJYU3piZUJiQUhvRl9QNDhZcjVUNHA3YTdjY1F3cjVhSFE0d0tiWUo3WW0wNlg2QWtpSmVCdXJyYXVEcm5HTEtBa3F6WWZ3TllmSkZicGJtRF9qN2s5WGdDeXdSWV9DSW9MMXdZOTFPZ2c?oc=5) |
| resilience.org | The Great Dying offers a warning for a world ignoring climate collapse | [Source Link](https://news.google.com/rss/articles/CBMiuAFBVV95cUxQTUVNR2NkZUNmVlFVUHdKZWhLUlppdktQTjFNdU03dEpwZHk4Q0FubXEwRktoX2JfWGhsbUlZUHByUWN6eHlpV09ocVJObktRNEhzdlVkcWxxZXowLTEyVXhQTm9EbHI0TWtCUGlObzVYVWlLWWJZWmlSSVptY0p6V2JXSU81cXBXMVJzbEc1bmNMOHBHZmU4NThfOURlOEg5MTFrZHd3SU1NRDYtOVl1aTI1OWZPZ1J3?oc=5) |
| The Economic Times | Scientists detect Earth's deadliest extinction signs in today's oceans: Great Dying started with warming s | [Source Link](https://news.google.com/rss/articles/CBMiwwJBVV95cUxQMlB1eDZLSDNsMURxdEtPeWV4Nk9XY1VIQk5uX0dRNnE0SHBuSkxqMnVpRlpXMzBfQi1ud1F4ejROc1lSelJZTHR1VC02Z3VmbHdlN21vS0I2MkFxQXlUczVRM2I3UW1DMFpadk5xRnVNUFY1RV9taWlHSmFjRHFCTHRldXBROTFUajY1dFF4QU80VGhfT3JFaFdCWTNkamJycEhGVW4xeHIwSWUxSmJQOG5KN2RiaE5aYXZRRGt0al9CbVF1bXJPT0tpd1d0WmQxVnl2elFIWVg0M1hWRzlIbjRoTkotSlVXc1FVaVNZemZpb3BYenNvZEdQUlpBTHZCRHhxaFk3TTZVcmlsZ0x2SnkxX3NFOVRxQkRLalRZNktxaERaSk5OZTA1U05ldEw5MHFLNFRPeUZsRnJlVWp6WXNJc9IByAJBVV95cUxNTDNyWlBRdjR) |
| Open Access Government | Metabolic vulnerability confirmed as cause of Earth’s biggest mass extinction | [Source Link](https://news.google.com/rss/articles/CBMivgFBVV95cUxNbWZTR2xwRWFBeWhLeldVNXMtenpyNDV6Yzd3ZGpYS0g1dzJka3MtNUlUc1dpTEdOWDFteUlKMTE4dHNwOEZSX3lHRFljUU9CSXh0TjVZUnBvYWFzZTRXa1dUemxMRFNueWljRnRqZWY5WGpiczEwdEdxLUt1RS1FSGFXRENmaU9hYTFBNEJwallFSkZOOXpwbDRja1lXN1pZNlZOaWE3Z01RbVhmaTBuQ29IREJmUDlEQWRjUVJB?oc=5) |
| ScienceDaily | Scientists finally solved the mystery of Earth's greatest mass extinction | [Source Link](https://news.google.com/rss/articles/CBMib0FVX3lxTE1sWnExV19iM1JGdWk5QkU4MDYyMGpOTEdfNXRLaUZwZXFZNUJZRFlFenVQZ1hIYUpLX0FJRlJVUEhKSzNJMHV1WF84Yk42MlpvZS1XNjBLejBZejdqeWZZSUNSY3V3TzdETzQwYlJlMA?oc=5) |
| Stanford Doerr School of Sustainability | Researchers confirm cause of Earth’s biggest mass extinction | [Source Link](https://news.google.com/rss/articles/CBMingFBVV95cUxOUDlsUGpIUVctODlwZVllR1lLNmdMUmd0NmR2dXliLVpEZmFELVU1UEtHUTgzdGtnZ29VOVVJNkpLSi1KU2FybzZrLTFSenI5RlFlY0t3blRLVGpkeEhiN05pZjA1YXBGMzMxQ3VUNVUxX29OQ2hBSi0tYUJfb0Jqa0RYMHVQdFdfQlRGb2lIZnFSTk8yX3hwNjVGYVVqUQ?oc=5) |
| Space Daily | Around 252 million years ago, volcanoes across what is now Siberia erupted repeatedly for more than a million years, releasing perhaps 100,000 billion tonnes of carbon dioxide and helping wipe out roughly 90 per cent of marine species in the deadliest mas | [Source Link](https://news.google.com/rss/articles/CBMipwFBVV95cUxOR290cFNHeklWakx2STE4ZzBtYTJZeEFXTEtPN0ZTekxWSTZTVkNTSGRhYXVoaFI1OUJhakt0c0ZhclR6d0cxYmMxeUE4eEZuUGh0dUdYc2F1UW1HQVplWktMY0VVYW5OOHYzekVpOHc0a2hQWHlpT3gwa2F0SHN1OW1fNWFiUzJDVC1ySlBlYWYyaVRZeHRRQW5ocUVZZUJkTTQ1bHZQMA?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-07-13/around-252-million-years-ago-volcanoes-across-what-is-now-siberia-erupted*