Drinking water supply and sanitation services are essential for human health, but their technologies and management systems are potentially vulnerable to climate change. This paper (268 KB) presents an assessment, at a global scale, of the resilience of the currently used technologies and management of drinking water supply and sanitation services to projected climate changes in the short to medium term.  It shows that very few technologies are resilient to climate change and that the sustainability of the current progress towards the MDGs may be significantly undermined. It stresses on the need to adapt current practices and to build greater resilience in water-using sectors to minimize adverse impacts. Also, it recommends a number of technical adaptation measures that would reduce vulnerability.