Water allocation reform: what makes it so difficult?

The increasingly urgent reform of water allocation is challenged by the complexity of the political dimension, in particular the need to reconcile often competing objectives such as food and energy security and green growth. Moreover, these objectives are unstable, and allocation regimes have to adjust to shifting priorities and circumstances at the lowest cost to society. Climate change generates additional uncertainty in water availability and demand. This calls for robust allocation regimes that can adjust, reallocate and reduce water allocation in an organized way.