Spain is among the European countries facing the highest water stress, notably along the Mediterranean arc. Despite this, it possesses unique capabilities in water management; it leads Europe in water reuse and desalination technologies, and has the continent’s highest number of dams per capita, securing most of its urban water supply. Nonetheless, the investment gap in the urban water cycle challenges Spain’s ability to meet European Union environmental targets and ensure the sustainability of public health and economic activities. Therefore, this study analyzes the causes of Spain’s urban water investment deficit, arguing that these challenges stem from institutional factors rather than a lack of resources or technological development. The research identifies three primary governance failures: the lack of a national governing body to harmonize water policies, a fragmented pricing system that drives the infrastructure gap, and a regulatory framework that restricts private sector involvement in managing non-conventional water resources. Consequently, this study highlights the urgent need for adaptive governance to deploy all available tools to respond to the specific needs of each territory in scenarios of uncertainty and climate change.
Sánchez-Pérez et al. (Fri,) studied this question.