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The threatening thaw: climate professor on heatwaverisks to tipping point of permafrost

Prof Gustaf Hugelius warns wildfires could accelerate release of methane and carbon as vast regions approach irreversible thresholds

Read full story on The Guardian
Jonathan Watts20 Aug 2026, 04:00 amUpdated 4d ago1 min readScienceGlobal
The threatening thaw: climate professor on heatwave risks to tipping point of permafrost

GlobalJonathan Watts

Prof Gustaf Hugelius warns wildfires could accelerate release of methane and carbon as vast regions approach irreversible thresholds

Heatwaves and wildfires are not just scorching forests, they are adding to the tipping point risks in the world’s vast permafrost regions, which contain three times more carbon than all the living vegetation on Earth.

This is a major concern for Gustaf Hugelius, a professor at the Bolin Centre of Climate Research at Stockholm University, Sweden, and a leading authority on the risks from thawing tundra and peatlands. In this Q&A, he explains why the world should pay attention.

Heatwaves and wildfires are not just scorching forests, they are adding to the tipping point risks in the world’s vast permafrost regions, which contain three times more carbon than all the living vegetation on Earth.

This report is published with credit to The Guardian. The wire sent a summary; open the original for any extra context. Read on The Guardian

Source: The Guardian · Jonathan Watts. Published 20 Aug 2026, 04:00 am.

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