Why Climate Finance Matters More Than Ever in South Asia
IWMI says Nepal, Assam and Bangladesh floods show South Asia needs anticipatory adaptation finance that follows shared river systems, not national budget lines.
Why Climate Finance Matters More Than Ever Across South Asia, IWMI Says
South Asia, October 13, 2026 — Three water disasters struck Nepal, India and Bangladesh within weeks of each other this summer. A new IWMI feature by Tanmoy Bhaduri argues they were connected chapters of one river system’s story, yet adaptation funding is still divided along national budget lines.
Background
On August 26, a glacial and rock collapse on the Nepal–Tibet border sent flash floods and debris down the Trishuli and Bhotekoshi rivers. IWMI cites at least 1,455 deaths and more than 5,285 people missing. In July, the Brahmaputra flooded villages and crops in Assam, India. In early July, flash floods and landslides in Bangladesh’s Chattogram Division affected an estimated 1.3 million people across seven districts.
The piece describes the costs as supply-chain disruption, lost working days and rising public debt. Riverbank erosion in Assam permanently erases homes, schools and farmland, and Bangladesh’s flood-prone households are pushed deeper into poverty with each flood.
From Response to Anticipation
South Asian governments have improved disaster response through forecasting, early warning and evacuation planning, but the feature calls this largely reactive. It argues the region now needs anticipatory adaptation: stronger embankments, watershed restoration, better drainage and early warning, financed before disasters happen. It cites a Global Center on Adaptation estimate that each dollar invested in nature-based solutions can return up to eight dollars in benefits over time.
The Adaptation Finance Gap
India set up the National Adaptation Fund for Climate Change in 2015, managed through NABARD, but adaptation finance remains small next to mitigation spending, and delivery is slow. On one Andhra Pradesh project, only INR 2.28 crore ($0.24 million) of the INR 5.13 crore ($0.55 million) released had been used, with delays tied to land identification, engaging technical agencies and finalizing designs. The feature says adaptation’s returns are harder to see under conventional investment measures, so it attracts less capital than mitigation.
Linking Evidence to Finance
IWMI’s Water Resilience Tracker, run with the Alliance for Global Water Adaptation, Deltares and Arup, helps governments assess how well water is built into NDCs and National Adaptation Plans. In Nepal, IWMI is working with two ministries and training officials on climate finance and negotiations. Nepal’s third NDC puts mitigation targets through 2035 at $74 billion, about 85% expected from international finance, with another $18–20 billion needed for adaptation.
In Bangladesh, IWMI’s SoLAR project shows adaptation benefits can come from other sectors. More than a million irrigation pumps still run on diesel, and grid-connected solar pumps raised farmer incomes by about 34% and eased pressure on groundwater.
Conclusion
The feature’s central point is that climate finance is not only about raising larger sums. Countries need the evidence, institutions and technical capacity to turn national commitments into watershed restoration, flood resilience and stronger water governance. For readers in Pakistan, the shared hydrology it describes is a reminder that Indus Basin flood risk also moves across borders.
