An analysis of the effects of climate change on 22 critical agricultural commodities and three important natural resources in the developing world reveals a number of cross-cutting themes: The world’s agricultural systems face an uphill struggle in feeding a projected nine to ten billion people by 2050. Climate change introduces a significant hurdle in this struggle.
- Securing and maintaining necessary levels of calories, protein and nutrients for populations around the world will be an exceptional challenge.

This paper discusses methodologies applied in the Deduru Oya river basin, the basin selected from Sri Lanka for the regional study on the development of effective water management institutions. The study was funded by the Asian Development Bank (ADB) to assist the five countries, Indonesia, the Philippines, Nepal, China and Sri Lanka to work out methodologies and develop effective water management institutions (ADB-RETA 5812). The Deduru Oya basin in which the empirical studies were carried out is located in the northwestern province of Sri Lanka.