Major drivers include the potential rise in commodity prices and agricultural policies supporting irrigated crops with high water consumption per unit of agricultural land, or the increasing competition for land use across agricultural, forest and urban areas. Analysis of these major market and policy drivers is beyond the scope of this study, however, they suggest that policy approaches to managing droughts and floods are likely to take on greater importance in the context depicted by projections. Although there are several ways to define and measure these events (Sheffield et al.,