Projections indicate a continuation of the observed trends of river flood hazards in WCE  of 10% at 2°C GWL and 18% at 4.4°C GWL, and a decrease in NEU and SEU  with, respectively, 5 and 11% in NEU and SEU for a 100-year peak flow, making Europe one of the regions with the largest projected increase in flood risk . While there is disagreement on the magnitude of economic losses and people affected, there is high agreement on direction of change, particularly in WCE . New research increases confidence in AR5 statements that without adaptation measures, increases in extreme rainfall will substantially increase direct flood damages . With low adaptation, damages from river flooding are projected to be three times higher at 1.5°C GWL, four times at 2°C GWL and six times at 3°C GWL . At 2°C GWL, the incidence of summer floods is expected to decrease across the whole alpine region, whereas winter and spring floods will increase due to extreme precipitation  and snowmelt-driven runoff .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report