Each coloured unit is an individual building — red = bare, green = adequate shade. 30% canopy within 60 m is the threshold for meaningful cooling.
Tree canopy: Meta Canopy Height Model v2 (tree vegetation ≥ 2 m), % cover within a 60 m buffer of each building — the distance at which cooling remains significant (Ziter et al. 2019). Threshold: 30% canopy, the minimum linked to measurable cooling. Buildings: Overture Maps. City outline: GHSL Functional Urban Area. Global Urban Canopy & Heat Exposure Study, 2026.