Last Update: 04/05/2026 at 2:50 PM EST
Thawing Permafrost Releases More Carbon
Coverage from EurekAlert!, Phys.org, and others
Articles
4
Latest Article
03/30
Active Days
64
Executive Summary
Thawing polar soils and permafrost are speeding microbial activity, plant-driven emissions and gas flow, raising the risk of larger climate feedbacks
- Thawing cold-region microbes are breaking down more organic matter and releasing more carbon dioxide and methane
- The review covers Arctic, Antarctic, alpine and subarctic environments and links warming to faster carbon cycling
- Thawing soils can also free contaminants such as mercury into rivers and food webs
- Researchers say oxygen, moisture and nutrient flow help shape how thawed ecosystems release gases
- Data gaps and uneven sampling limit long-term climate projections for polar microbiology
- In Stordalen mire, grass-dominated thaw stages raised greenhouse gas emissions about ninefold
- A Leeds study found thawing permafrost can become 25 to 100 times more permeable to gases
Quick Facts
- What: Thawing soils raise microbial activity and greenhouse gas release
- Where: Arctic Antarctic alpine and subarctic environments
- Why: Warming loosens frozen ground and speeds carbon and gas escape
- Who: McGill and European researchers studying thawing cold regions
- When: Reported in 2026 across recent studies
Coverage Timeline: 64 Days
Featured Article
University of Leeds researchers in Earth's Future report experiments showing thawing Arctic permafrost increases permeability 25 to 100 times, boosting escape of climate-forcing gases.
Additional Articles
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University of Leeds researchers in AGU Earths Future report laboratory evidence that permafrost thaw can increase gas permeability 25 to 100 times, enabling carbon and methane escape in the Arctic.
Researchers report in 2026 that thawing polar regions could accelerate microbial carbon release, amplifying climate change in Arctic and Antarctic ecosystems.
University of Tübingen researchers measured seasonally varying carbon dioxide and methane fluxes in Stordalen mire, Sweden, finding grass dominance increases greenhouse gas emissions during permafrost thaw.