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Ancient Microbes Revived: Thawing Permafrost Sparks Climate Concerns

10/19/2025

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Summary

Story summary

Researchers revived ancient microbes from Arctic permafrost in Alaska, triggering emissions of carbon dioxide and methane.
In Siberia, scientists revived a new nematode species, Panagrolaimus kolymaensis, that had been frozen since the Last Ice Age.
The studies indicate thawing permafrost could release dormant life forms and contribute to climate feedback loops.
The nematodes' survival mechanisms may inform modern biobanking techniques.

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Story summary

Researchers revived ancient microbes from Arctic permafrost in Alaska, triggering emissions of carbon dioxide and methane.
In Siberia, scientists revived a new nematode species, Panagrolaimus kolymaensis, that had been frozen since the Last Ice Age.
The studies indicate thawing permafrost could release dormant life forms and contribute to climate feedback loops.
The nematodes' survival mechanisms may inform modern biobanking techniques.