Impact of Permafrost Collapse on Himalayan Disasters | 30 Sep 2024

Glaciologists as a part of India's Arctic Expedition, are researching permafrost collapse to assess disaster risks in the Himalayas due to climate change.

Permafrost is ground that remains frozen at or below 32°F (0°C) for at least two years, commonly found in high-latitude and high-altitude regions.
- Permafrost is a combination of soil, rocks, and sand held together by ice, with frozen soil and ice year-round.
Global warming leads to permafrost thaw (the melting of permanently frozen soil or rock), causing fluctuations and potential ground collapse, which can affect infrastructure.
- There is a significant knowledge gap regarding the potential link between permafrost and disasters in the Indian Himalayas, including recent events like the South Lhonak glacial lake (Sikkim) bursting.
Glaciologists aim to fill data gaps by studying permafrost in Arctic regions, leveraging findings for similar Himalayan topography.
- The goal is to create awareness among local communities for early warning systems and long-term infrastructure planning.