‘Hybrid’ approaches, combining green-blue infrastructure (GBI) and grey infrastructure, seems to be the most effective strategy in an urban context to mitigate flooding hazards and enhance system resilience. GBI is a central concept to achieve adaptation to the effects of climate change since it includes measures or actions to reduce society’s vulnerability and to expand resilience capacity. The acceptance of GBI as an adaptation option needs more research to evaluate both the benefits and the cost-effectiveness of GBI compared to conventional options. To develop effective adaptation strategies for current and future scenarios it is important to incorporate the use of green-blue measures, which should be evaluated analysing their applicability in different contexts and their potential to achieve multiple benefits related with urban well-being, rather than just the management of stormwater. The chapter also presents an overview of the key concepts discussed in this book.