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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

Scientists have identified metabolic vulnerability and volcanic activity as the causes of the 'Great Dying,' Earth's deadliest mass extinction.

By Archynetys Intelligence Desk · Published July 16, 2026 06:03 UTC · Updated July 16, 2026 12:59 UTC

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🤖 AI Dossier

Evidence dossier

Intelligence passport

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All brief claims passed the second-source checkbrief evidence status

Measured timeline

Jul 13, 17:24 UTC
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Jul 16, 12:59 UTC

📍 Where it landed

Scientists confirmed that metabolic vulnerability and warming seas caused Earth's biggest mass extinction. This event was driven by repeated volcanic eruptions in Siberia that released massive amounts of carbon dioxide.

Researchers noted that signs of this deadliest extinction are now detected in today's oceans.

Epilogue added 91d ago, after coverage quieted.

The obvious questions

What caused the Great Dying?

The extinction was driven by volcanic eruptions in Siberia that released carbon dioxide and created metabolic vulnerability.

How many species were affected?

Roughly 90 per cent of marine species were wiped out during this event.

When did this event occur?

The eruptions and subsequent extinction took place around 252 million years ago.

The story so far

⚡ Executive Intelligence Takeaways Corroborated across 7 independent newsrooms

Velocity & Diffusion: Coverage exploded across 7 distinct news outlets with 7 published articles, achieving a live velocity of 5.
Primary Driver: Scientists have identified metabolic vulnerability and volcanic activity as the causes of the 'Great Dying,' Earth's deadliest mass extinction.
Predictive Outlook: Archynetys algorithmic models forecast this story will fade from trending status over the next 24 hours.
Source Integrity: Verified strictly against primary headline reporting under zero-hallucination protocols.

Around 252 million years ago, repeated volcanic eruptions in Siberia occurred for over a million years. These events released approximately 100,000 billion tonnes of carbon dioxide, contributing to the extinction of roughly 90 percent of marine species.

Coverage from ScienceDaily, the Stanford Doerr School of Sustainability, and Open Access Government emphasizes that researchers have confirmed metabolic vulnerability as the cause of the event. The Economic Times reports that signs of this extinction, which began with warming seas, are being detected in modern oceans.

Reporting from Gizmodo and resilience.org suggests the findings serve as a warning regarding climate collapse and the future of the planet.

Synthesized by Archynetys from the headlines below under a strict no-invention contract. ✓ fact-checked: all claims supported by sources Updated 91d ago.