Documenting the success of transboundary cooperation on nexus solutions, such as improving food security and providing access to safe and reliable water and energy services, is a complex task. While substantial progress has been demonstrated for the MDG target on access to safe drinking water, access to basic sanitation lags behind. Water also plays a major role in other MDGs and their targets related to poverty, health, food security and the environment. For most of these goals progress remains slow. Similarly, other indicators show little improvement: the number of people living with water scarcity is expected to rise until 2025, water withdrawals keep rising, access to water services is still a major problem in many basins and the fight against malaria has started to show results, cholera – another water related disease – is becoming more prolific.