On World Lake Day, global attention turns to the 117 million lakes worldwide, including Nepal’s 5,338 lakes that sustain ecology, economy, and culture. Yet their state reflects stark contrasts.
Nepal’s lakes are more than natural landmarks — they are sources of irrigation, fish farming, tourism, and spirituality. However, climate change and human activity are reshaping them in uneven ways.
Glacial Lakes in the Himalayas
The Himalayan region has witnessed a rapid rise in glacial lakes. According to the National Lake Conservation and Development Committee, Sagarmatha had 135 glacial lakes in 2000, which grew to 206 by 2020. Similarly, Karnali saw an increase from 476 to 520 in the same period.
These changes are linked to accelerated glacier melt caused by global warming. While glacial lakes serve as vital water reserves, they also pose risks of glacial lake outburst floods (GLOFs) that endanger downstream communities and infrastructure.
Disappearing Lakes in the Terai and Hills
In contrast, many lakes in the Terai and mid-hill regions are disappearing. Human encroachment, pollution, agricultural expansion, and urbanization have contributed to the loss of traditional ponds and wetlands. This decline impacts biodiversity, reduces water availability, and threatens farming and fisheries that rely on these water sources.
The ecological imbalance also affects migratory bird habitats and disrupts natural water cycles, underlining the urgent need for stronger conservation measures.
Economic and Cultural Importance of Lakes
Nepal’s lakes are deeply woven into civic and cultural life. Farmers depend on lake water for irrigation, while fish farming sustains local incomes.
Tourism hubs such as Pokhara — home to Phewa Lake, Begnas Lake, and Rupa Lake — demonstrate how lakes fuel regional economies. Boating, hospitality, and tourism services built around these lakes contribute significantly to national revenue and employment.
Lakes also hold religious importance. Sites like Gangasagar in Janakpur, Talbarahi in Pokhara, and Mai Pokhari in Ilam attract thousands of devotees annually, showing how spirituality and ecology are intertwined.
Ilam, with its numerous lakes, has enriched local culture and biodiversity, while Kaski district’s lakes have placed Nepal on the global tourism map.
Policy and Conservation Efforts
Nepal’s government has connected lake conservation with the Sustainable Development Goals (SDGs), particularly SDG 6 (Clean Water and Sanitation), SDG 13 (Climate Action), SDG 14 (Life Below Water), and SDG 15 (Life on Land).
Dr. Maheshwar Dhakal, head of the Climate Change Division under the Ministry of Forests and Environment, acknowledges that while policy commitments exist, implementation remains limited. He stresses the need for campaigns to restore and construct lakes and ponds in water-scarce regions of the Himalayas, hills, and Terai.
Local Participation: The Way Forward
Experts argue that community participation is crucial for effective conservation. Local governments and grassroots campaigns have a greater chance of sustaining lakes than top-down interventions alone.
The dual challenge of expanding Himalayan lakes and vanishing Terai wetlands underscores the need to treat lakes not merely as scenic features but as foundations of life, economy, and culture.
Conclusion
The state of Nepal’s lakes is both an environmental and human issue. As glacial lakes grow and lowland wetlands decline, the balance of ecology and society is under strain. Ensuring their protection requires urgent conservation action, strengthened local participation, and recognition that Nepal’s lakes are not just symbols of beauty but the lifeblood of civic life.
Also read: World Lake Day 2025: Why Nepal’s Lakes Matter for Climate and Conservation
