We analyse the threats of global environmental change, as they relate to food security. First, we review three discourses: (i) ‘sustainable intensification’, or the increase of food supplies without compromising food producing inputs, such as soils and water; (ii) the ‘nexus’ that seeks to understand links across food, energy, environment and water systems; and (iii) ‘resilience thinking’ that focuses on how to ensure the critical capacities of food, energy and water systems are maintained in the presence of uncertainties and threats.

Phase II of the CGIAR Challenge Program for Water and Food (CPWF) is a multi-institutional and inter-disciplinary research for development initiative focused on increasing the resilience of social and ecological systems through better water management for food production.Phase II in the Ganges Basin began in 2011 and is scheduled to end in 2014.

Traditionally, the users? organisations at local level are playing an important role for the management of natural resources by organizing the users. The Government of Nepal through its Water Resources Strategy 2002 and National Water Plan 2005 has emphasized a holistic approach in place of sectoral one for natural resources management at sub/basin level based on the principle of Integrated Water Resources Management (IWRM). It envisages the creation of committee at the sub/basin level, which is lacking at present.