The Statecraft Institute
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Nepal Floods: The Himalayan Crisis and the Case for Climate Neighbourhood First

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The devastating floods that struck Nepal in August 2026 should not be viewed simply as another Himalayan natural disaster. They are a warning about a changing ecological system whose consequences do not respect national borders. For India, Nepal is not merely a close neighbour connected by history, culture and geography. It is also a critical part of India's Himalayan climate security – a mountain ecosystem through which the health of rivers, glaciers and watersheds directly affects India's water, food, energy and human security. The implications extend well beyond Nepal.

The Himalayas constitute a single ecological system divided among sovereign states. Several major tributaries of the Ganga including the Kosi, Gandak, Bagmati, Kamla and Rapti originate in Nepal before entering India. The two countries, therefore, share not simply rivers, but a common hydrological risk environment. India's government already operates bilateral mechanisms for flood forecasting and management with Nepal, including the Joint Team on Flood Forecasting.

Climate change is making this interdependence more consequential. The Nepal disaster resembles a series of extreme Himalayan events witnessed in India, including Kedarnath in 2013, Chamoli in 2021 and the South Lhonak glacial lake disaster in Sikkim in 2023. These events demonstrate how rapid changes in glaciers, glacial lakes, rainfall and mountain slopes can generate cascading disasters.

A recent assessment reported by Reuters has warned that accelerating Himalayan glacier loss could create profound consequences for water security and livelihoods across the region.

The lesson for India is clear: what happens in the Himalayas does not remain in the Himalayas.

From Disaster Relief to Climate Partnership

India's response to Nepal's crisis has already demonstrated the importance of bilateral cooperation. Following the disaster, India also approved electricity exports to Nepal to help compensate for damage to the country's hydropower infrastructure.

But the larger challenge is to move from emergency assistance to institutionalised climate resilience.

India and Nepal should deepen cooperation in at least five areas: real-time hydrological and meteorological data sharing; joint monitoring of glaciers and glacial lakes; satellite-based disaster surveillance; coordinated early-warning systems; and resilient infrastructure planning.

This should not be restricted to individual river projects. The objective should be to treat the Himalayan watershed as a shared ecological security space.

Nepal already possesses institutional expertise in hydrological and meteorological monitoring. Its Department of Hydrology and Meteorology is responsible for monitoring river hydrology, snow hydrology, glaciology, weather and climate and for issuing early warnings. India can complement these capabilities through satellite technology, forecasting infrastructure and scientific institutions.

Nepal and the Politics of Climate Justice

The Nepal disaster also raises a larger global question: who pays for climate damage?

Nepal contributes less than 0.1 per cent of global greenhouse gas emissions, yet its Himalayan geography exposes it disproportionately to climate-related hazards. Following the floods, Nepali leaders renewed calls for climate justice and international assistance.

This is at the heart of the wider Global South argument on climate change.

Climate justice cannot mean simply asking vulnerable countries to adapt to conditions they did little to create. Adaptation requires finance, technology, scientific capacity and institutional support. Mountain countries such as Nepal face an especially difficult combination of warming temperatures, glacier retreat, extreme rainfall, landslides and fragile infrastructure.

India has itself emerged as an important voice of the Global South on questions of equity, development and climate finance. Nepal therefore offers New Delhi an opportunity to connect its neighbourhood diplomacy with its Global South diplomacy.

India's support for Nepal need not be understood as charity. It can be framed as climate solidarity among developing countries facing shared vulnerabilities.

Reimagining Neighbourhood First

This is where India's Neighbourhood First policy needs to acquire a new dimension.

India's Ministry of External Affairs describes Nepal as a relationship to which India attaches the ‘highest priority’, with cooperation spanning infrastructure, water resources, power, agriculture and other sectors. Climate change now cuts across all these areas.

Neighbourhood first can no longer be understood only in terms of roads, railways, trade, energy and connectivity. In the Himalayan context, it must increasingly mean shared ecological security.

India's own interests reinforce this logic. A resilient Nepal means greater resilience for India's Himalayan states and downstream plains. Better early-warning systems in Nepal can provide additional time for communities downstream in India. Joint glacier monitoring can improve disaster preparedness on both sides. Cooperation on hydropower can strengthen regional energy security while reducing vulnerability after disasters.

The relationship consequently needs to move from river management to river-system management; from disaster response to disaster anticipation; and from bilateral diplomacy to shared climate governance.

India's Climate Security Begins in its Neighbourhood.

The strategic significance of Nepal is therefore changing. India's traditional security thinking has understandably concentrated on borders, political stability, connectivity and external influence. Climate change requires a broader understanding of security.

The Himalayas are increasingly becoming a space where ecology, water, energy, disaster management and human security intersect.

India cannot insulate itself from Himalayan climate risks by focusing exclusively on its own territory. Nor can Nepal manage these risks alone. The ecological geography of the region makes cooperation unavoidable.

The August floods should therefore become an opportunity to develop an India-Nepal Climate Resilience Partnership built around early-warning systems, scientific cooperation, climate-resilient infrastructure, hydrological data sharing, emergency response and access to international climate finance.

For India, helping Nepal become more climate-resilient is not merely an act of neighbourhood solidarity. It is also an investment in India's own climate security.

The Himalayan crisis is already crossing borders. India's response must do the same. In the age of climate change, Neighbourhood First should begin not merely with the map but with the mountains, rivers and communities that the map divides.

Disclaimer: Views expressed are of the author(s) and do not necessarily reflect the views of The Statecraft Institute.