Sikkim has identified 40 high-risk glacial lakes, 16 of which are in the highest Category A risk. Following the August floods in Nepal, the state has launched a comprehensive mitigation plan to curb potential glacial lake outburst floods (GLOFs). Shako Chho Lake has been singled out as the most vulnerable and is the focus of targeted interventions.

  • 40 high-risk glacial lakes identified.
  • 16 lakes classified as Category A, highest risk.
  • Sikkim's mitigation plan follows Nepal's August floods.

Background and Current Situation

The Sikkim government has recently identified 40 high-risk glacial lakes, 16 of which are classified as Category A – the highest risk level. This comes in the wake of the August 2026 floods in Nepal’s Nuwakot district that claimed more than 1,200 lives. Although the Nepal disaster was not a GLOF, it has reignited concerns about the Himalayas’ vulnerability to climate‑related hazards.

Sikkim’s Strategic Response

Principal Secretary Sandeep Tambe announced that the state is employing satellite imagery and remote sensing to monitor lake levels and changes. Shako Chho Lake has been identified as the most vulnerable, and a detailed mitigation project has been submitted to the National Disaster Management Authority and the Jal Shakti Ministry.

Read Also:US and India Broaden Defence and Civil Nuclear Collaboration, Says Senior Trump Official

Related Projects and Infrastructure

For the Lhonak Complex, the Central Water Commission and Sikkim government are preparing a DPR for a flood‑retention structure at Dolma Sampa near Muguthang. At the Gurudongmar Complex, authorities have proposed a moraine plug wall at the lake outlet, taking cultural and religious considerations into account.

Why This Matters

BozokMedia analysis shows that climate change is amplifying the risk posed by Himalayan glacial lakes, creating a serious threat not only to local communities but also to regional water security.

"Climate change is intensifying the risk of glacial lake outbursts, raising the flood threat across the Himalayas."
Did You Know?: Shako Chho Lake covers an area of 1.2 square kilometers, making it one of the largest glacial lakes in Sikkim.

Frequently Asked Questions

1. Is there still a flood risk at Shako Chho Lake?

2. How will Sikkim’s greenhouse gas reduction policy impact glacial lake stability?