More than four in five homes and workplaces across 25 European cities have inadequate tree canopy nearby for effective cooling, according to a new open-data analysis by an urban greening expert. The finding underscores a growing crisis as heat waves intensify across the continent.
The study highlights a structural deficit in urban planning, where concrete and asphalt dominate while green infrastructure lags. This lack of shade disproportionately affects densely populated neighborhoods, where residents face higher heat-related health risks.
Specifically, the analysis indicates that over 80% of residential and commercial properties are situated too far from sufficient tree cover to lower ambient temperatures meaningfully. No precise figures on canopy thresholds or specific city rankings were provided.
The results call into question current municipal strategies for climate adaptation. Cities may now need to accelerate tree-planting initiatives and consider policy changes that prioritize green space over development.
Some critics argue that urban greening alone cannot offset rising temperatures without broader emissions reductions and building design changes. The analysis did not account for other cooling factors like bodies of water or reflective surfaces.