Italy vs. Poland: A Comparative Analysis of Regional Planning System Attitudes toward Adaptation to Climate Changes and Green Infrastructures

European spatial planners deal with two major concerns: adaptation to climate changes (ACC) and the design and management of green infrastructures (GIs). ACC calls for the renewal of spatial planning with constant appeals to the need to adequately prepare for extreme climate events. GIs deliver ecosystem services (ES), which consist of beneficial functions to living beings in terms of, for example, helping people adapt to climate change. An effective implementation of adaptation measures at the regional and sub-regional scale is based on an efficient and prompt spatial planning system and GIs management. In this paper, we aim at comparing the attitudes of Italian and Polish spatial planning systems with respect to the integration of concepts related to ACC and GIs. We describe commonalities and differences between the two spatial planning frameworks by scrutinizing regional plans adopted in Sardinia (Italy) and Wielkopolska (Poland). We found out a scarce consideration of both ACC and GIs planning and management. The findings suggest that the regional spatial planning tools need to be updated to be fully satisfactory in terms of ACC and GIs concepts.