Permafrost Research

Glaciologist S.N. Remya is involved in research of permafrost layers to assess potential climate change catastrophes in the future  at the Himadri research station in Norway.

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Predicting Himalayan Permafrost Collapse and Early Warnings

• Presence of Permafrost: Permafrost exists in high-altitude regions like the Himalayas.
• Lack of Data: Limited information on Himalayan permafrost hinders accurate impact predictions.
• Research Efforts: Researchers like Remya are studying permafrost conditions in the Himalayas.
  • Focus on rock glaciers and the effects of thawing permafrost
• Focus Area: To identify the probability of disasters due to permafrost collapse and help provide early warnings to local communities

What is Permafrost?

• Permafrost refers to soil or rock that remains frozen for at least two consecutive years.
• It is primarily found in polar regions and high mountain areas where the ground stays below 0°C, trapping ice within the soil. 
• While permafrost itself doesn’t have to contain ice, it often does, and this ice plays a critical role in maintaining the ground’s stability.
• Global Distribution: Although permafrost is typically associated with the Arctic, it is also present in high-altitude regions like the Himalayas. 

Impacts of Thawing Permafrost

• Ground Instability and Infrastructure Damage: As permafrost thaws, soil loses its integrity, leading to ground instability, landslides, and infrastructure failure.
  • Regions like Canada and Alaska have already experienced damage to roads, buildings, and pipelines.
  • Communities in these areas are witnessing increased subsidence (ground sinking due to melting ice).
• Risk to Mountainous Regions:In mountain areas, melting permafrost can trigger landslides or glacial lake outbursts, posing serious risks to local populations.
  • One such example is the recent South Lhonak glacial lake flood in Sikkim, which could be linked to permafrost thaw. 
• Release of Greenhouse Gases: Arctic permafrost contains an estimated 1,700 billion metric tons of carbon (methane and CO₂).
  • This is 51 times the amount of carbon released globally from fossil fuel emissions in 2019.
• Health Risks from Dormant Viruses: Thawing permafrost could unleash thousands of dormant viruses and bacteria.
  • Some may be ancient or previously eradicated diseases like smallpox or Bubonic plague, to which humans may lack immunity or cures.

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Significance of studying Permafrost

• Identify at-risk areas: Pinpoint regions susceptible to permafrost collapse.
• Develop early warning systems: Implement systems to alert communities of potential hazards.
• Improve disaster preparedness: Enhance local communities’ ability to respond to permafrost-related disasters.
• Inform infrastructure planning: Guide long-term development decisions in the region.