This article aims to analyze the relationships between water and land. It posits that there is a disconnect between land and water management that needs to be rectified. To address the major challenges the world is facing in terms of feeding itself and securing adequate access to water there is...

Water security needs priority in adaptation to global change. Most vulnerable will be the semi-arid tropics and subtropics, home of the majority of poor and undernourished populations. Policies have to distinguish between dry spells, interannual droughts and long-term climate aridification. Four...