MetaRisk-W frames the vulnerability of Small Island Developing States (SIDS) to water stress from the perspective of “metabolic risk”, defined as systemic risks associated with the circulation, integrity, and availability of critical resources in a socio-ecological system. The project aims to take stock of water related research and databases in the Caribbean, and develop a common framework and definitions to aid understanding of systemic risks associated with water metabolism and related security. It also aims to develop strategic partnerships in the Caribbean for establishing a Decision Support System (DSS) for enhancing water security in the region in the next phase.